Can i disable Joomdlehooks and Joomdlesession plugin?

Hello!

Joomdle 0.7
By default installation, the following plugins are installed on my system.
user - Joomdlehooks
System - Joomdlesession

What are their roles? how they works?
i didn`t find any explanation in joomdle manual.

if i disable Joomdlehooks and Joomdlesession, any effect on joomdle basical operation?
for performance reason, i need to disable no necessary plugin.

thanks in advance.

Urgent!
As a testing, i disable System - Joomdlesession and keep user - Joomdlehooks valid.
After i log out, i can`t log in joomla backend as admin now.
it shows :
HTTP error 500（Internal Server Error）

What should i do? Please help me!

Perhaps you have done more than that as my joomdlesession is disabled and my joodlehooks is enabled and I have no problem logging in and out. Than again I am using different joomla, joomdle and moodle versions.

If you want to re-enable joomdlesession, just log into you backend cpanel, go into your phpadmin and enable the plugin through the extensions table.

You are right. i made a mistake.It is not joomdlesession but J16 Language backport plugin which cause the issue.
I can log in without problem now.
Thanks a lot!

by the way,Would you kindly tell me what joomdlesession and Joomdlehooks plugin are used for?
I didn`t find any explain in joomdle wiki pages.