Forum members shows as guest

[محروم.كوم]

Hello every body

I have a small problem

when I transfer members from my old data base and import it in my new data base

the members still shown as guest in threads

when I see the new database in user table, everything is ok and usergroupid is the same with displaygroupid. = 2


not that guest id is 1

and members is 2 __DEFINE_LIKE_SHARE__