diff --git a/data/web/corefork.telegram.org/method/account.acceptAuthorization.html b/data/web/corefork.telegram.org/method/account.acceptAuthorization.html
index f1272cd32f..7767a06c0f 100644
--- a/data/web/corefork.telegram.org/method/account.acceptAuthorization.html
+++ b/data/web/corefork.telegram.org/method/account.acceptAuthorization.html
@@ -97,7 +97,24 @@
 </tbody>
 </table>
 <h3><a class="anchor" href="#result" id="result" name="result"><i class="anchor-icon"></i></a>Result</h3>
-<p><a href="/type/Bool">Bool</a></p></div>
+<p><a href="/type/Bool">Bool</a></p>
+<h3><a class="anchor" href="#possible-errors" id="possible-errors" name="possible-errors"><i class="anchor-icon"></i></a>Possible errors</h3>
+<table class="table">
+<thead>
+<tr>
+<th>Code</th>
+<th>Type</th>
+<th>Description</th>
+</tr>
+</thead>
+<tbody>
+<tr>
+<td>400</td>
+<td>PUBLIC_KEY_REQUIRED</td>
+<td>A public key is required.</td>
+</tr>
+</tbody>
+</table></div>
   
 </div>
           
diff --git a/data/web/corefork.telegram.org/method/channels.checkUsername.html b/data/web/corefork.telegram.org/method/channels.checkUsername.html
index 7ad09edf41..e8ec656ecc 100644
--- a/data/web/corefork.telegram.org/method/channels.checkUsername.html
+++ b/data/web/corefork.telegram.org/method/channels.checkUsername.html
@@ -115,6 +115,16 @@
 </tr>
 <tr>
 <td>400</td>
+<td>MSG_ID_INVALID</td>
+<td>Invalid message ID provided.</td>
+</tr>
+<tr>
+<td>400</td>
+<td>PEER_ID_INVALID</td>
+<td>The provided peer id is invalid.</td>
+</tr>
+<tr>
+<td>400</td>
 <td>USERNAME_INVALID</td>
 <td>The provided username is not valid.</td>
 </tr>
diff --git a/data/web/corefork.telegram.org/method/channels.updatePinnedForumTopic.html b/data/web/corefork.telegram.org/method/channels.updatePinnedForumTopic.html
index 22c650b364..e8a3f0d5a1 100644
--- a/data/web/corefork.telegram.org/method/channels.updatePinnedForumTopic.html
+++ b/data/web/corefork.telegram.org/method/channels.updatePinnedForumTopic.html
@@ -93,6 +93,23 @@
 </table>
 <h3><a class="anchor" href="#result" id="result" name="result"><i class="anchor-icon"></i></a>Result</h3>
 <p><a href="/type/Updates">Updates</a></p>
+<h3><a class="anchor" href="#possible-errors" id="possible-errors" name="possible-errors"><i class="anchor-icon"></i></a>Possible errors</h3>
+<table class="table">
+<thead>
+<tr>
+<th>Code</th>
+<th>Type</th>
+<th>Description</th>
+</tr>
+</thead>
+<tbody>
+<tr>
+<td>400</td>
+<td>TOPIC_ID_INVALID</td>
+<td>The specified topic ID is invalid.</td>
+</tr>
+</tbody>
+</table>
 <h3><a class="anchor" href="#bots-can-use-this-method" id="bots-can-use-this-method" name="bots-can-use-this-method"><i class="anchor-icon"></i></a>Bots can use this method</h3>
 <h3><a class="anchor" href="#related-pages" id="related-pages" name="related-pages"><i class="anchor-icon"></i></a>Related pages</h3>
 <h4><a class="anchor" href="#forums" id="forums" name="forums"><i class="anchor-icon"></i></a><a href="/api/forum">Forums</a></h4>
diff --git a/data/web/corefork.telegram.org/method/chatlists.deleteExportedInvite.html b/data/web/corefork.telegram.org/method/chatlists.deleteExportedInvite.html
index de461b787b..c0e65a086e 100644
--- a/data/web/corefork.telegram.org/method/chatlists.deleteExportedInvite.html
+++ b/data/web/corefork.telegram.org/method/chatlists.deleteExportedInvite.html
@@ -98,6 +98,11 @@
 <td>FILTER_ID_INVALID</td>
 <td>The specified filter ID is invalid.</td>
 </tr>
+<tr>
+<td>400</td>
+<td>FILTER_NOT_SUPPORTED</td>
+<td>The specified filter cannot be used in this context.</td>
+</tr>
 </tbody>
 </table>
 <h3><a class="anchor" href="#bots-can-use-this-method" id="bots-can-use-this-method" name="bots-can-use-this-method"><i class="anchor-icon"></i></a>Bots can use this method</h3>
diff --git a/data/web/corefork.telegram.org/method/chatlists.editExportedInvite.html b/data/web/corefork.telegram.org/method/chatlists.editExportedInvite.html
index 7994c297d8..b43be8044f 100644
--- a/data/web/corefork.telegram.org/method/chatlists.editExportedInvite.html
+++ b/data/web/corefork.telegram.org/method/chatlists.editExportedInvite.html
@@ -112,6 +112,11 @@
 <td>FILTER_ID_INVALID</td>
 <td>The specified filter ID is invalid.</td>
 </tr>
+<tr>
+<td>400</td>
+<td>FILTER_NOT_SUPPORTED</td>
+<td>The specified filter cannot be used in this context.</td>
+</tr>
 </tbody>
 </table>
 <h3><a class="anchor" href="#bots-can-use-this-method" id="bots-can-use-this-method" name="bots-can-use-this-method"><i class="anchor-icon"></i></a>Bots can use this method</h3>
diff --git a/data/web/corefork.telegram.org/method/chatlists.getLeaveChatlistSuggestions.html b/data/web/corefork.telegram.org/method/chatlists.getLeaveChatlistSuggestions.html
index bae8f908f2..2bdc84eed6 100644
--- a/data/web/corefork.telegram.org/method/chatlists.getLeaveChatlistSuggestions.html
+++ b/data/web/corefork.telegram.org/method/chatlists.getLeaveChatlistSuggestions.html
@@ -76,6 +76,28 @@
 </table>
 <h3><a class="anchor" href="#result" id="result" name="result"><i class="anchor-icon"></i></a>Result</h3>
 <p><a href="/type/Vector%20t">Vector</a>&lt;<a href="/type/Peer">Peer</a>&gt;</p>
+<h3><a class="anchor" href="#possible-errors" id="possible-errors" name="possible-errors"><i class="anchor-icon"></i></a>Possible errors</h3>
+<table class="table">
+<thead>
+<tr>
+<th>Code</th>
+<th>Type</th>
+<th>Description</th>
+</tr>
+</thead>
+<tbody>
+<tr>
+<td>400</td>
+<td>FILTER_ID_INVALID</td>
+<td>The specified filter ID is invalid.</td>
+</tr>
+<tr>
+<td>400</td>
+<td>FILTER_NOT_SUPPORTED</td>
+<td>The specified filter cannot be used in this context.</td>
+</tr>
+</tbody>
+</table>
 <h3><a class="anchor" href="#bots-can-use-this-method" id="bots-can-use-this-method" name="bots-can-use-this-method"><i class="anchor-icon"></i></a>Bots can use this method</h3>
 <h3><a class="anchor" href="#related-pages" id="related-pages" name="related-pages"><i class="anchor-icon"></i></a>Related pages</h3>
 <h4><a class="anchor" href="#deep-links" id="deep-links" name="deep-links"><i class="anchor-icon"></i></a><a href="/api/links">Deep links</a></h4>
diff --git a/data/web/corefork.telegram.org/method/chatlists.hideChatlistUpdates.html b/data/web/corefork.telegram.org/method/chatlists.hideChatlistUpdates.html
index 462ce7701a..a32f0f333e 100644
--- a/data/web/corefork.telegram.org/method/chatlists.hideChatlistUpdates.html
+++ b/data/web/corefork.telegram.org/method/chatlists.hideChatlistUpdates.html
@@ -78,6 +78,28 @@
 </table>
 <h3><a class="anchor" href="#result" id="result" name="result"><i class="anchor-icon"></i></a>Result</h3>
 <p><a href="/type/Bool">Bool</a></p>
+<h3><a class="anchor" href="#possible-errors" id="possible-errors" name="possible-errors"><i class="anchor-icon"></i></a>Possible errors</h3>
+<table class="table">
+<thead>
+<tr>
+<th>Code</th>
+<th>Type</th>
+<th>Description</th>
+</tr>
+</thead>
+<tbody>
+<tr>
+<td>400</td>
+<td>FILTER_ID_INVALID</td>
+<td>The specified filter ID is invalid.</td>
+</tr>
+<tr>
+<td>400</td>
+<td>FILTER_NOT_SUPPORTED</td>
+<td>The specified filter cannot be used in this context.</td>
+</tr>
+</tbody>
+</table>
 <h3><a class="anchor" href="#bots-can-use-this-method" id="bots-can-use-this-method" name="bots-can-use-this-method"><i class="anchor-icon"></i></a>Bots can use this method</h3>
 <h3><a class="anchor" href="#related-pages" id="related-pages" name="related-pages"><i class="anchor-icon"></i></a>Related pages</h3>
 <h4><a class="anchor" href="#deep-links" id="deep-links" name="deep-links"><i class="anchor-icon"></i></a><a href="/api/links">Deep links</a></h4>
diff --git a/data/web/corefork.telegram.org/method/chatlists.joinChatlistUpdates.html b/data/web/corefork.telegram.org/method/chatlists.joinChatlistUpdates.html
index a4e0fff13e..bf0961062c 100644
--- a/data/web/corefork.telegram.org/method/chatlists.joinChatlistUpdates.html
+++ b/data/web/corefork.telegram.org/method/chatlists.joinChatlistUpdates.html
@@ -88,6 +88,28 @@
 </table>
 <h3><a class="anchor" href="#result" id="result" name="result"><i class="anchor-icon"></i></a>Result</h3>
 <p><a href="/type/Updates">Updates</a></p>
+<h3><a class="anchor" href="#possible-errors" id="possible-errors" name="possible-errors"><i class="anchor-icon"></i></a>Possible errors</h3>
+<table class="table">
+<thead>
+<tr>
+<th>Code</th>
+<th>Type</th>
+<th>Description</th>
+</tr>
+</thead>
+<tbody>
+<tr>
+<td>400</td>
+<td>FILTER_ID_INVALID</td>
+<td>The specified filter ID is invalid.</td>
+</tr>
+<tr>
+<td>400</td>
+<td>FILTER_INCLUDE_EMPTY</td>
+<td>The include_peers vector of the filter is empty.</td>
+</tr>
+</tbody>
+</table>
 <h3><a class="anchor" href="#bots-can-use-this-method" id="bots-can-use-this-method" name="bots-can-use-this-method"><i class="anchor-icon"></i></a>Bots can use this method</h3>
 <h3><a class="anchor" href="#related-pages" id="related-pages" name="related-pages"><i class="anchor-icon"></i></a>Related pages</h3>
 <h4><a class="anchor" href="#chatlistsgetchatlistupdates" id="chatlistsgetchatlistupdates" name="chatlistsgetchatlistupdates"><i class="anchor-icon"></i></a><a href="/method/chatlists.getChatlistUpdates">chatlists.getChatlistUpdates</a></h4>
diff --git a/data/web/corefork.telegram.org/method/messages.requestWebView.html b/data/web/corefork.telegram.org/method/messages.requestWebView.html
index 7b477053f6..e1d7664726 100644
--- a/data/web/corefork.telegram.org/method/messages.requestWebView.html
+++ b/data/web/corefork.telegram.org/method/messages.requestWebView.html
@@ -146,7 +146,12 @@
 <tr>
 <td>400</td>
 <td>BOT_WEBVIEW_DISABLED</td>
-<td> </td>
+<td>A webview cannot be opened in the specified conditions: emitted for example if <code>from_bot_menu</code> or <code>url</code> are set and <code>peer</code> is not the chat with the bot.</td>
+</tr>
+<tr>
+<td>400</td>
+<td>INPUT_USER_DEACTIVATED</td>
+<td>The specified user was deleted.</td>
 </tr>
 <tr>
 <td>400</td>
diff --git a/data/web/corefork.telegram.org/method/messages.setDefaultHistoryTTL.html b/data/web/corefork.telegram.org/method/messages.setDefaultHistoryTTL.html
index c6d1d4ecb9..4b80cf77c1 100644
--- a/data/web/corefork.telegram.org/method/messages.setDefaultHistoryTTL.html
+++ b/data/web/corefork.telegram.org/method/messages.setDefaultHistoryTTL.html
@@ -78,6 +78,23 @@
 </table>
 <h3><a class="anchor" href="#result" id="result" name="result"><i class="anchor-icon"></i></a>Result</h3>
 <p><a href="/type/Bool">Bool</a></p>
+<h3><a class="anchor" href="#possible-errors" id="possible-errors" name="possible-errors"><i class="anchor-icon"></i></a>Possible errors</h3>
+<table class="table">
+<thead>
+<tr>
+<th>Code</th>
+<th>Type</th>
+<th>Description</th>
+</tr>
+</thead>
+<tbody>
+<tr>
+<td>400</td>
+<td>TTL_PERIOD_INVALID</td>
+<td>The specified TTL period is invalid.</td>
+</tr>
+</tbody>
+</table>
 <h3><a class="anchor" href="#bots-can-use-this-method" id="bots-can-use-this-method" name="bots-can-use-this-method"><i class="anchor-icon"></i></a>Bots can use this method</h3></div>
   
 </div>
diff --git a/data/web/corefork.telegram.org/method/photos.uploadContactProfilePhoto.html b/data/web/corefork.telegram.org/method/photos.uploadContactProfilePhoto.html
index 31edf5120b..a5012dbcf6 100644
--- a/data/web/corefork.telegram.org/method/photos.uploadContactProfilePhoto.html
+++ b/data/web/corefork.telegram.org/method/photos.uploadContactProfilePhoto.html
@@ -4,10 +4,10 @@
     <meta charset="utf-8">
     <title>photos.uploadContactProfilePhoto</title>
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <meta property="description" content="Upload a custom profile picture for a contact, or suggest a new profile picture to a contact.">
+    <meta property="description" content="Upload a custom profile picture for a contact, or suggest a new profile picture to a contact.  The file, video and video_emoji_markup flags are mutually exclusive.">
     <meta property="og:title" content="photos.uploadContactProfilePhoto">
     <meta property="og:image" content="">
-    <meta property="og:description" content="Upload a custom profile picture for a contact, or suggest a new profile picture to a contact.">
+    <meta property="og:description" content="Upload a custom profile picture for a contact, or suggest a new profile picture to a contact.  The file, video and video_emoji_markup flags are mutually exclusive.">
     <link rel="icon" type="image/svg+xml" href="/img/website_icon.svg?4">
 <link rel="apple-touch-icon" sizes="180x180" href="/img/apple-touch-icon.png">
 <link rel="icon" type="image/png" sizes="32x32" href="/img/favicon-32x32.png">
@@ -125,6 +125,11 @@
 <tbody>
 <tr>
 <td>400</td>
+<td>CONTACT_MISSING</td>
+<td>The specified user is not a contact.</td>
+</tr>
+<tr>
+<td>400</td>
 <td>USER_ID_INVALID</td>
 <td>The provided user ID is invalid.</td>
 </tr>