error on grocery delivery

[HelloKit]

After updating a whole buttload of Awesome hacks to their most recent OFB-compatible versions (I haven't installed Pets yet), I kept running into this error tonight when trying to have groceries delivered. The error occurred when the delivery person would ring the doorbell.

Can somebody read this and tell me what caused it?

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[twojeffs]

My guess would be quieter-doorbell, but can't say for sure.

[J. M. Pescado]

Fixing.