Looking for a flutter Developer to Fix crashes in application -- 2

we working on an ecommerce application but anyhow we are not able to solve an issue app is crashes in Samsung and vivo mobile regularly , we try our best to do fixes but still it exist in cresylic is show non fatal error

We are Looking for an individual who can immediately start and solve this error .

samsung and vivo not working and also otp not come from firebase and just rename some things that i can explain

i need immediate start