I have a simple flutter app it’s working well and fast on android .
Also it’s working well on web build mode.
But in web release mode it’s stuck in first page.
I checked the console logs in inspect it’s repeat the below error.

Uncaught TypeError: Cannot read properties of null (reading 'toString')
at main.dart.js:43310:3
at b_c.a (main.dart.js:6954:63)
at b_c.$2 (main.dart.js:51742:14)
at Object.t (main.dart.js:6940:10)
at avs.aGr (main.dart.js:43316:10)
at avs.rp (main.dart.js:43305:21)
at main.dart.js:44976:19
at b_c.a (main.dart.js:6954:63)
at b_c.$2 (main.dart.js:51742:14)
at Object.t (main.dart.js:6940:10)

Site address is this pieceshot game

Also it’s working better (sometimes loaded in web on desktop) but in mobile is very bad.