Running CMAQ v.5.3.2 error

I am having issues with running CMAQ.
I am seeing this message.

** Runscript Detected an Error: CGRID file was not written. **
** This indicates that CMAQ was interrupted or an issue **
** exists with writing output. The runscript will now **
** abort rather than proceeding to subsequent days. **

I also looked for the log files, but my LOGS folder is empty. Can anybody help please?

Thank you!

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