Attempt to call field 'rgba' a nil value

[hasen6]

Does this still work? I noticed it's quite old. Sometimes it updates ok but sometimes I get the error 'attempt to call field RGBA'..I noticed this function is missing from the latest version of lume. I found the function in an older version of lume but adding it back in doesn't help. It just comes up with a different error - "If you fix the problem and update the file the program will resume"

There's no errors in my code though, if I open a new window it loads fine so there isn't actually any error but lurker doesn't seem to like something.