Using Uptown theme(by nop-templates) with plugins in nopCommerce 4.1 getting error of entity framework randomly and site stopped running.
Error message: Operations that change non-concurrent collections must have exclusive access. A concurrent update was performed on this collection and corrupted its state. The collection's state is no longer correct.
Got errors in two times on 8 days. Both times site stopped and came back after restart from IIS.
One is for Anywhere slider plugin and another is for Rich blog
I have added screenshots for both times