Progressive web app error issue ( pwa )

Hi SAB Community,

We made a great Bengali Bible app using SAB. Now, we want to build a “progressive web app”. I faced a big problem but couldn’t fix it and found no clue.

I attached a screenshot. Kindly check this and I will be grateful to you!!

Please create an issue at Scripture App Builder Support and include a zip of your project. If you are already on Scriptoria, you can include the project number and organization instead of the zip file and I can download directory from there.