Could not authenticate for an unknown reason

[tscj3490]

Initially, I could log in with my username and password and at the same time, once log in, I registered my credential by using Keychain.setGenericPassword.
Next, I log out and once I log in again, I could log in with my credential by using Keychain.getGenericPassword.

I considered the case that other log in with his credential to same app. So other log in as same way. If new keychain is differ to old keychain, I set keychain again by using Keychain.resetGenericPassword()
Then app showed below error.
.... ... ...
Could not authenticate for an unknown reason.

• node_modules/@babel/runtime/helpers/construct.js:30:26 in _construct
• node_modules/@babel/runtime/helpers/wrapNativeSuper.js:26:23 in Wrapper
• ... 8 more stack frames from framework internals

I couldn't know the reason.. Please help me...
Thanks