I have an online Dynamics 365 environment where I have installed a managed solution. This managed solution consists of a N: N relationship component between a Custom and System User entity.
When I am trying to delete the managed solution getting the below error,

If I download the log file it gives me the following error, "The entity with a name = 'XXXXX' with namemapping = 'Logical' was not found in the MetadataCache."
Here, 'XXXXX' is the relationship name of User and custom entity. Any idea what could be the reason for this?