why can't you install any plugin? do you get any error?
Message:SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'id' cannot be null
File:/var/zpanel/hostdata/zadmin/public_html/buddylist_cf/ow_core/database.php
Line:723
Trace:
#0 /var/zpanel/hostdata/zadmin/public_html/buddylist_cf/ow_core/database.php(723): PDOStatement->execute()
#1 /var/zpanel/hostdata/zadmin/public_html/buddylist_cf/ow_core/database.php(476): OW_Database->execute('INSERT INTO `ow...', Array)
#2 /var/zpanel/hostdata/zadmin/public_html/buddylist_cf/ow_core/database.php(512): OW_Database->insert('INSERT INTO `ow...', Array)
#3 /var/zpanel/hostdata/zadmin/public_html/buddylist_cf/ow_core/base_dao.php(216): OW_Database->insertObject('ow_base_plugin', Object(BOL_Plugin))
#4 /var/zpanel/hostdata/zadmin/public_html/buddylist_cf/ow_system_plugins/base/bol/plugin_service.php(396): OW_BaseDao->save(Object(BOL_Plugin))
#5 /var/zpanel/hostdata/zadmin/public_html/buddylist_cf/ow_system_plugins/admin/controllers/plugins.php(685): BOL_PluginService->install('guestredirect')
#6 [internal function]: ADMIN_CTRL_Plugins->install(Array)
#7 /var/zpanel/hostdata/zadmin/public_html/buddylist_cf/ow_core/request_handler.php(276): ReflectionMethod->invokeArgs(Object(ADMIN_CTRL_Plugins), Array)
#8 /var/zpanel/hostdata/zadmin/public_html/buddylist_cf/ow_core/request_handler.php(252): OW_RequestHandler->processControllerAction(Object(ReflectionMethod), Object(ADMIN_CTRL_Plugins))
#9 /var/zpanel/hostdata/zadmin/public_html/buddylist_cf/ow_core/application.php(364): OW_RequestHandler->dispatch()
#10 /var/zpanel/hostdata/zadmin/public_html/buddylist_cf/index.php(76): OW_Application->handleRequest()
#11 {main}
Type:PDOException