my plesk gives me this error :
ERROR: PleskMainDBException
MySQL query failed: Incorrect information in file: './psa/misc.frm'
0: /usr/local/psa/admin/plib/common_func.php3:168
db_query(string 'select param, val from misc')
1: /usr/local/psa/admin/plib/common_func.php3:587
get_param(string 'mysql41_compatible')
2: /usr/local/psa/admin/plib/common_func.php3:484
db_set_names()
3: /usr/local/psa/admin/plib/common_func.php3:463
db_connect_real(string 'localhost', string 'admin', string '********', string 'psa')
4: /usr/local/psa/admin/plib/common_func.php3:443
db_connect()
5: /usr/local/psa/admin/auto_prepend/auth.php3:90
what should i do ?

What version of plesk are you running, where is this error showing up at? Please provide us with more information...

i'm using plesk 9 for linux . when i type my plesk root address as method http://domain.com:8443 it shows me this error .

is there any body to help me ?:confused:

I had same problem,
I think you disabled InnoDB.
edit /etc/my.cnf and remove skip-innodb if exist and then restart mysqld service : service mysqld restart