MyBB Error message!!

[khalil1392]

Hello,

I get 2 error messages in my forum. Can you please help me solve these problems?

MyBB has experienced an internal SQL error and cannot continue.

SQL Error:
1103 - Incorrect table name '#mysql50#2013-09-10 21-00 Copy of taka_backup_threadsubscriptions'
Query:
SHOW TABLE STATUS

-------------

MyBB has experienced an internal SQL error and cannot continue.

SQL Error:
130 - Incorrect file format 'taka_threadviews'
Query:
INSERT INTO taka_threadviews (tid) VALUES('2863')

Regards

[marcus123]

Have you changed mybb prefix to taka one?

[khalil1392]

Actually I don't remember I have changed this.
We have another problem in database that all tables got very long prefix in
their names!

Have you changed mybb prefix to taka one?