Website slow and Database

[islamis4u]

my website have gotten really slow 15 mins to open and sometimes it does show up, some times its show database error cannot connect... please tell me what should i do its a live site

khan.exofire.net/khan/

 

[Derek]

Please bare with us right now as our servers are having networking problems.

 

[islamis4u]

I know you can not give me exact date but can you tell probable date of removing this problem..