[Serusers] serweb blank page

[Mindaugas Kuprys]

Hi,

I have problems loading serweb admin or users page. After giving 
username and password  I'm getting blank page. Last log in serweb log is:
May 03 08:48:09 serweb [debug] User login: checking password of user 
with username: admin, domain: erdves.lt
And I have no errors in apache-err.log even if with highest apache debug 
level setting. Strange is that I have yhe same situation even if i'm 
giving a mistaken mysql login in config_data_layer.php .  Where should I 
search solution?

Thanks in advance,
Mindaugas