What is this error?

[MMMidas]

2019.12.07 16:43:18.095 19.11.25.0 error while compiling the plugins (System.IndexOutOfRangeException: O índice estava fora dos limites da matriz.
em *‎​*‪*‎*‪*‏​‏‫*‏**‬‎‫​*‫​****.*​‬‪*‎*‪*‏‏‎‫​**​‫‬‏*‪*‬‫‫‪* ‬*(String , String , String )
em *‎​*‪*‎*‪*‏​‏‫*‏**‬‎‫​*‫​****.​*‪​‬*‫‎*​‏‬‏*‫‪* *(CSharpCodeProvider , CompilerParameters , String[] ))

can someone tell me what it mean?

[iThinkiWin]

If you use dictionary you would add 3 items, these indexes would be 1, 2, and 3.
For a list this would be 0, 1, and 2.
For dictionary if you were to attempt to gather the item from [4] or in the lists case [3] you would get an out of range error.

So.. the only way to really check for this would be going through each plugin and checking if they have dictionary, hashset, list, etc and updating them.
Really a pain in the ass would be easier just to fresh install and manually add each plugin yourself again if you have no idea what you are doing.