[Help] Cant open Decrypted ipa

[y0ush4]

Content

i downloaded a simple printer app from ios god webpage which have already decrypted apps listed i tried 2 of them it just open for a sec and close how to enable APPSYNC/?or i am doing something wrong?i am on 15proMAX ios 17.6.1

[claration]

Drag ipa into app,
install mode: Install
signing mode: "no modify"
then press install