Initial
Hello, sorry I took a long time to reply, I wanted to make a good post! I checked and indeed deleting it did not work! My next thought was to just corrupt the plugin’s information so it cant be loaded in the first place.
Now the problem with deleting the plugin from your files is that ROBLOX will simply just redownload it and refresh your plugins while in studio (which just re-runs the plugin now and crashes your studio again!!) Thanks @realhigbead I did not know this
The Concept
So what I did was create a test plugin that would crash any place you opened while you have the plugin installed (Simple while true do end). The way I bypassed the issue is first navigating to my plugin’s folder. Then I just replaced the .rbxm file for the plugin with an empty string.
Step 1
To get there, first go to your ROBLOX files. A shortcut to get there is to press the Windows Key and R at the same time, which will prompt Run. Enter this after opening run: %localappdata%\Roblox\InstalledPlugins
Example of what you should see
After that navigate to your plugins folder which is designated by your UserId. What is a UserId? Well its just an ID assigned to every user. Quickly get yours from your profile link. Here is an example of mine.
Getting your user id
Step 2
Next find the folder with the plugin that is causing you this grief. You can do this by just going to the page of the plugin you recently installed that caused this.
Navigating the folders
Open the folder inside of the plugin’s folder and you will see a Plugin.rbxm file.
What you're looking for
Open the file in a text editor of your choice. I will be using Visual Studio Code. Don’t get scared when you see this mess
Just select everything and delete it. Then after that just save the file. (Note this will cause an error when you open a place, if you dont want this error to appear replace the contents of the file with <roblox></roblox> instead)
Extra
Step 3
Congrats! You can now run studio without crashing!