diff --git a/docs/openvk_engine/afterinstall.md b/docs/openvk_engine/afterinstall.md
index c24efd4..a019146 100644
--- a/docs/openvk_engine/afterinstall.md
+++ b/docs/openvk_engine/afterinstall.md
@@ -1,17 +1,29 @@
 # After installation
 
-**If there is empty screen**
+**"Table "aliases" does not exist."**
 
-Check openvk.yml -> "credentials" -> "eventDB" and set correct `dbname`, `user` and `password`. Or set `enable` on "false", but notifications will be unavailable.
+You forgot to apply migration files from %openvk%/install/sqls. <!--To not import all files separately, you may merge them into one file. On Windows: copy *.sql all.sql On UNIX: cat *.sql > .all.sql-->
+
+**Page infinitely reloads**
+
+Set "security" -> "secret" on %chandler%/chandler.yml.
+
+**Empty page with Tracy bar**
+
+Check openvk.yml -> "credentials" -> "eventDB" and set correct `dbname`, `user` and `password`. Also, you can set `enable` to "false", but notifications will be unavailable.
+
+**Nette says that table does not exist, but it's not so**
+
+Try to clean up Nette cache on %chandler%/tmp/cache/database
 
 **How to enable gifts?**
 
-Go to openvk.yml -> "preferences" -> set "commerce" to "true". You can add gifts in admin panel later.
+Go to openvk.yml -> "preferences" -> set "commerce" to "true". You can add gifts in the admin panel later.
 
-<!--**How to give support rights to user?**
+**How to give support rights to user?** <!--This functionality is broken, but let's pretend it works-->
 
 Go to `/admin/chandler/groups` -> create new group "Support"
 
 Then go to edit page, "Group Permissions", set "Model" to "openvk\Web\Models\Entities\TicketReply", "Permission" -> "write"
 
-Then go to "Group Members" -> set UID from needed user (you can get it from "/admin/users") -> "Add"-->
+Then go to "Group Members" -> set UID from needed user (you can get it from "/admin/users") -> "Add"