Rare server crash

I'm asking for help. In the last days after the upgrade I have a server failure once a day. Nothing happens in magazines. New plug-ins are missing, earlier all worked stably. Another problem is that after the fall some date files are cleared
We apologize for the translator in English, Google
Log files down

 

A few plugins need a prefix added some References need removed from some plugins
and these two errors need fixed
11:45 [Error] Failed to add image for autokit. File address possibly invalid

11:45 [Error] Failed to add image for admin. File address possibly invalid

if this player is not an admin Larsalex then he is using a program to fly
19:12 [Warning] Larsalex кикнут с причиной: FlyHack Violation Level 127.3158
19:12 [Info] Игрок <color=#FFC003>Larsalex</color> кикнут
Причина: <color=#FFC003>FlyHack Violation Level 127.3158</color>

 

The first mistake - now correct
The second error is the admin

The problem, probably, is not this. For 4 months the server with these errors worked stably

 

None of the above would cause what you had but as you said it is rare then dont worry about it as to the prefix and References that need fixed not hard to do that

 

flykick does not mean someone is cheating - we get it all the time on our server when we climbing up the ladders on quarries.