HELP with Error. "Submodel does not exist:catalog", "Can only init the organize module once".

[NoneMorning]

I've suddenly had a problem with lightroom giving me an error message reading "Submodel does not exist:catalog". Once I click okay, it prompts me with another error reading "Can only init the organize module once". Once I click okay the screen remains gray and I cannot do anything. Selections in the top left menus are greyed. 

I have not changed anything in order for this to occur. I've checked my antivirus, firewall rules, and do not run a VPN. This is very strange and frustrating. Any helo fixing this would be great. Lightroom Classic still works but I do prefer to use this version. Thank you. 

[Anant5C1C · Accepted solution]

@NoneMorning 
Thanks for sharing.
Please close Lightroom and check for any pending system updates.
If on Windows, please update it by typing system updates in the start menu > Check for updates.
Download and install the update
Restart system and relaunch Lightroom