在Google工作表中自动删除多张工作表

I have the following script written to auto delete rows in my sheet when the date in column K are less than the current date. I have recently added some new tabs within my sheet and cannot get the code to delete those new tabs. The date remains in column K on the new tabs. Here is the script. What adjustments do I need to make to make this work? I have the following script written to auto del