PDF Fill error - ???contents.error.alertMsg???

Has anybody seen this error before?

I'm using Fill PDF plugin to fill out 100+ fields on a PDF. I tested the plugin successfully using 1 field on a different PM first. The PDF document generated properly, created a new document, and was using fillPdf = {{name: "untitled1", value: "value"}} to do so.

However, as soon as I moved the plugin over to my actual PM, and replaced the "value" with a pv!, I received the following error: ???contents.error.alertMsg??? 

No document is being generated. Does anybody have any insight into this issue?

Thank you

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