Unexpected Error occurs when a Custom Center tab is added in the Links tab of a Custom Record

Add a Category to the Custom Center tab by following the steps below:

1. Navigate to Customization > Centers and Tabs > Center Tabs.
2. Edit the Center Tab that was created.
3. Add a Category name in the Content > Categories list.
4. Save.

Note: If a Category has already been added, make sure that it is selected in the Custom Record Type > Links tab > Category column.