I have deployed SuiteCRM 7.10.6 on PHP Version 5.6.30 and every time I attempt to add/create an item from the sub panels, say Create Account under Projects Accounts sub-panel. the system, logs me out!
Any ideas where the problem is?
ps. forum also not allowing screenshot upload! 
check disk space
check PHP session.save_path is writeable
check if you have any add-ons like SuitePImproved Theme or anything that changes the login screen
see if there are any errors in your logs
Thanks pgr
Here’s part of my suitecrm.log file
Make anything out of it?
Tue Jun 26 12:49:04 2018 [2146][1][FATAL] Undefined index: module
Tue Jun 26 12:49:04 2018 [2146][1][FATAL] Invalid or missing SubPanelDefinition property: subpanel_name
Tue Jun 26 12:49:04 2018 [2146][1][FATAL] Failed to load original or custom subpanel data for eapm in
Wed Jun 27 09:33:42 2018 [27954][1][FATAL] log call at: modules/Administration/index.tpl:54 - MY_FRAME is not set
Wed Jun 27 09:35:12 2018 [31419][1][FATAL] log call at: modules/Administration/index.tpl:54 - MY_FRAME is not set
Wed Jun 27 11:29:01 2018 [30237][1][FATAL] log call at: modules/Administration/index.tpl:54 - MY_FRAME is not set
Wed Jun 27 11:33:09 2018 [39446][1][FATAL] log call at: modules/Administration/index.tpl:54 - MY_FRAME is not set
Wed Jun 27 11:34:09 2018 [41721][1][FATAL] log call at: modules/Administration/index.tpl:54 - MY_FRAME is not set
Wed Jun 27 11:34:49 2018 [42602][1][FATAL] Mysqli_query failed.
Wed Jun 27 11:34:49 2018 [42602][1][FATAL] Query Failed: DESCRIBE versions: MySQL error 1146: Table 'suite_crm.versions' doesn't exist
Wed Jun 27 11:34:49 2018 [42602][1][FATAL] Mysqli_query failed.
Wed Jun 27 11:34:49 2018 [42602][1][FATAL] Query Failed: SHOW INDEX FROM versions: MySQL error 1146: Table 'suite_crm.versions' doesn't exist
Wed Jun 27 11:34:49 2018 [42602][1][FATAL] Mysqli_query failed.
Wed Jun 27 11:34:49 2018 [42602][1][FATAL] Query Failed: select * from versions: MySQL error 1146: Table 'suite_crm.versions' doesn't exist
Wed Jun 27 11:49:17 2018 [25410][1][FATAL] log call at: modules/Administration/index.tpl:54 - MY_FRAME is not set
Thu Jun 28 04:14:12 2018 [34791][1][FATAL] log call at: modules/Administration/index.tpl:54 - MY_FRAME is not set
Pay attention to the timestamps there. Tell me which of those are when the logout occurs?
The MY_FRAME errors go away with this:
https://github.com/salesagility/SuiteCRM/pull/6097/files
But your problem is probably not even related to that. Your first three messages look more worrying to me.
What about php_errors.log? What’s in there at the time of the log out?