first admin login not possible

Hello,
after a new install and correct the problem with php8.1 i have this error in my log:
2022-03-08 17:29:25.543

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DEBUG

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login for maintenance with '�(���' / '!���W'
2022-03-08 17:29:25.543

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DEBUG

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login for maintenance with other than 'admin' / 'admin'
2022-03-08 17:29:25.543 ===== TRACE ===== Migrating from version < V4.0.0 : previous errors are expected for Class 'User' on fields 'loginTry', 'salt' and 'crypto'

login admin/admin is not possible.
it's un pb linked with the error with php8.1 ?

Thanks in advence
Bruno.