mysql 5.1 and plesk

[fandar]

Hi, i installed php 5.1.15 (from source), mysql works fine, but plesk shows this errors:

ERROR: PleskMainDBException
MySQL query failed: Can't find file: 'misc' (errno: 2)

0: /usr/local/psa/admin/plib/common_func.php3:213
db_query(string 'select param, val from misc')
1: /usr/local/psa/admin/plib/common_func.php3:492
get_param(string 'mysql41_compatible')
2: /usr/local/psa/admin/plib/common_func.php3:389
db_set_names()
3: /usr/local/psa/admin/plib/common_func.php3:368
db_connect_real(string 'localhost', string 'admin', string '********', string 'psa')
4: /usr/local/psa/admin/plib/common_func.php3:348
db_connect()
5: /usr/local/psa/admin/auto_prepend/auth.php3:87

Can you help me please? Thank You