Hello. Thank you for contacting the Toolset support.
Well - We publish the Types 3.0 with the new many to many relationships and we have added the number of new features to this major release in May 2018, last year.
In your case, please try to update the Toolset plugins manually from the plugins page:
*** Please make a FULL BACKUP of your database and website.***
I suggest you should update ALL Toolset plugins manually for now.
- Deactivate and Delete all Toolset plugins from the plugins page
- Download the latest Toolset Types plugin form your account's page:
=> https://toolset.com/account/downloads/
- Upload and activate first Types plugin and then you are free to install and activate all other Toolset plugins.