the functions called from the html files are not found, resulting in a "NAME not defined" error.

I'm trying to figure out if it's a settings problem but it doesn't seem.

Hello, I inherited a Google Sheet that uses your excellent script, but recently it stopped working. I'll try to share as much debugging information as I can.

1. Open a sheet with Password Manager, wait until it loads
2. Select a cell with a password, choose "Password Manager" -> "Decrypt Password".
3. Enter shared secret, press Decrypt
4. The Decrypt button display "Decrypting" and never changes.

After doing Step 2, the developer console displays this error (in Google Chrome)
Io {message: "There was an error during the transport or process…this request. Error code = 10, Path = /wardeninit", name: "TransportError", stack: "TransportError: There was an error during the tran…/js/2219290006-warden_bin_i18n_warden.js:196:247)"}

After doing Step 4, the developer console displays:
sjcl.min.js:1 Uncaught invalid {message: "json decode: this isn't json!", toString: ƒ}

This happens every time, and has for the last couple weeks. The same behavior happens in Safari.

Thank you!