MoreCommands 1.19.9 update: Added a config setting to disable a command. All you need to do is enter the command you wish to disable into the config. I put some more info and a couple of examples in there to help. NOTE make sure the command is lowercase.
I also removed /repair because somehow I messed up and coded the same thing twice in different ways XD. /fix and /repair as a command still exist and does work.
Please do not hesitate to let me know if you found an error or thought of something I should know.
This was suggested to me by Kylepoops, VildaR on discord. Join my discord if you need any help or have any suggestions.