I get the same "GL" error messages at start and end. They seem to be harmless. The only thing I do not get is the JIT message. There are multiple posts here about the same error message, almost none of which contain a solution. You might take a look at RStudio error starting R - #5 by JohnHCarsonJr (different OS) which contains a solution involving reinstalling graphics drivers. Sorry I can't be more help.