Unfortunately, the steam module just isn't all that reliable. Most of which has to do with steam's "API". You could try to create a debug log.
Code:
sm_calladmin_steam_debug "1"
Upgrade your account if it's limited and or increase those convars
Code:
sm_calladmin_steam_logoffdelay
Code:
sm_calladmin_steam_messagedelay
You can find me at the alliedmods/sourcemod discord if you need further help or want to pm me the debug log.