hey all ,

my problem is a bit strange . i have succeeded in compiling ser 0.9.7 on solaris 10 x86 arch and the compilation process went smoothly without any troubles ( i mean the last time i compiled ser ) after that i have configured Ser to work with MySQL 5 and aslo there werent any problems happened

the problem is :

i have added some users in the subscriber table to check that ser is preconfigured correctly using x-lite softphone and also there weren't any problems for the first time i registered with xlite , the problem appears when i unregistered the account and leave SER running for several hours without any user'registration ( about 10 hrs SER is idle or more )

So my question is :

is there any pre-determined period that ser shouldnt be idle ? or it there any configuration responsible for determining the max time that SER can  rest in idle status ?

the error message that appears in the x-lite winow is " Registration error 500 : Server internal Error "

Note : when i do restarting SER all things are fine and i can be able to registration without any error , the error appear when i do unregistration and SER is idle

thanks in advance