Errors in director class

Downloaded ricardorauber’s director class version 1.4, but when I try to run my program, I’m given this error:

Line: 934

ERROR: table expected. If this is a function call, you might have used ‘.’ instead of ‘:’

stack traceback:

    [C]: ?

    [C]: in function ‘insert’

    …aaron/Documents/Work/Zabace/Z-Inspector/director.lua:934: in function ‘_listener’

    ?: in function <?:141>

    ?: in function <?:218>

 

Any suggestions?