Everything works perfectly on front-end of site.

Just started getting strange behavior for Admin. Backend for fieldgroups and fields.

I previously had a problem with my admin backend area fieldgroups being stuck together.

The wonderful staff at easy profile fixed the problem.

https://www.easy-profile.com/support/front-end-edit-easyprof-not-working-where-there-is-no-registration-menu-item-results-in-warning-username-email-not-available.html

My "root" for fieldgroups was corrupted and fixed.

My problem may have returned. I am having strange behavior when trying to move fields from one fieldgroup to another fieldgroup.

Question 1 - How to "fix" a corrupted root. I searched the other forum posts, and I was the it's ok only one with a prior fix of a corrupted fields root. Should I you go to jsn_fields table and select "repair table"? I back-up every day so I am not worried if something happens to the jsn_users or jsn_fields tables. Is there another way to fix without bothering the wonderful staff at easy profile?

Question 2 - I also have about 7-8 field groups, but I receive an error when trying to add another one.

Here is the error

Save failed with the following error: exception 'UnexpectedValueException' with message 'JsnTableField::_getNode(1, ) failed.' in [myhomerootofmywebsite]/public_html/libraries/joomla/table/nested.php:1542 Stack trace: #0 [myhomerootofmywebsite]/public_html/libraries/joomla/table/nested.php(784): JTableNested->_getNode('1') #1 [myhomerootofmywebsite]/public_html/administrator/components/com_jsn/tables/field.php(175): JTableNested->store(false) #2 [myhomerootofmywebsite]/public_html/administrator/components/com_jsn/models/field.php(378): JsnTableField->store() #3 [myhomerootofmywebsite]/public_html/libraries/legacy/controller/form.php(733): JsnModelField->save(Array) #4 [myhomerootofmywebsite]/public_html/libraries/legacy/controller/legacy.php(730): JControllerForm->save() #5 [myhomerootofmywebsite]/public_html/administrator/components/com_jsn/jsn.php(35): JControllerLegacy->execute('apply') #6 [myhomerootofmywebsite]/public_html/libraries/cms/component/helper.php(352): require_once('[myhomerootofmywebsite]/...') #7 [myhomerootofmywebsite]/public_html/libraries/cms/component/helper.php(332): JComponentHelper::executeComponent('[myhomerootofmywebsite]/...') #8 [myhomerootofmywebsite]/public_html/libraries/cms/application/administrator.php(98): JComponentHelper::renderComponent('com_jsn') #9 [myhomerootofmywebsite]/public_html/libraries/cms/application/administrator.php(159): JApplicationAdministrator->dispatch() #10 [myhomerootofmywebsite]/public_html/libraries/cms/application/cms.php(251): JApplicationAdministrator->doExecute() #11 [myhomerootofmywebsite]/public_html/administrator/index.php(42): JApplicationCms->execute() #12 {main}

I substituted [myhomerootofmywebsite] with the actual root path.

Is there a way to fix this, or maybe it is related to the same problem as Question 1 "corrupt" fields and/or fieldgroups?

Is there a limit on number of fieldsgroups?