Cannot convert undefined or null to object. auth0 login vue js

Hello,
I have got login-failed error "
Cannot convert undefined or null to object"
context Data
{
“body”: {
“wa”: “wsignin1.0”,
“wresult”: “eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiJ9.eyJ1c2VyX2lkIjoiNWY0MjBiZmUwMjJmM2EwMDNkNDc3YmZiIiwiZW1haWwiOiJiaGF0dGFjaGFyamVldGFuYXk5MUBnbWFpbC5jb20iLCJlbWFpbF92ZXJpZmllZCI6ZmFsc2UsInNpZCI6IkNMNHRVdl9DQ3IzWmhCZTlsWnFfcV9ZaTJmTE5xMk1iIiwiaWF0IjoxNTk4MTYzOTY3LCJleHAiOjE1OTgxNjQwMjcsImF1ZCI6InVybjphdXRoMDpkZXYtemlzZ3FpMDQ6VXNlcm5hbWUtUGFzc3dvcmQtQXV0aGVudGljYXRpb24iLCJpc3MiOiJ1cm46YXV0aDAifQ.VzyvSADuVBYcLw0yt5KmZKueCnXkmq2V5TwAh49_azKnQz-g-75QuKKN_2XkO6cP9CP-7otjs5tNyPeJ-XzDLgQI43X6N8Som02TWGgTGzSOA5xjlGFT6JLIy5w3rZoXY5irklfYbYXiJxDzRNyDk0kswKWjzm_n3YdLrF39c4s”,
“wctx”: “{“strategy”:“auth0”,“auth0Client”:“eyJuYW1lIjoiYXV0aDAtc3BhLWpzIiwidmVyc2lvbiI6IjEuOC4xIiwiZW52Ijp7ImxvY2suanMtdWxwIjoiMTEuMjAuNCIsImF1dGgwLmpzLXVscCI6IjkuMTIuMiJ9fQ==”,“tenant”:“dev-zisgqi04”,“connection”:“Username-Password-Authentication”,“client_id”:“bo4OVxoTzxEhLDLGsXGJI35Ph2nH5RQi”,“response_type”:“code”,“response_mode”:“query”,“scope”:“openid profile email”,“protocol”:“oauth2”,“redirect_uri”:“http://localhost:8080”,“state”:“g6Fo2SA0bDVRSDFmOVcxVHNPdWI2VkFrRzBERGZfWEhKZ0staqN0aWTZIFQydERURVlDRnA2dEd6TzIxVzF6RDEtNDROQ2Y3YVVWo2NpZNkgYm80T1Z4b1R6eEVoTERMR3NYR0pJMzVQaDJuSDVSUWk”,“nonce”:“aXJIWXVWaUM1MDMyWjhkRXl+WXNRN2oyZm10MVM2VjcxTVJJR0NBazhLTQ==”,“sid”:“CL4tUv_CCr3ZhBe9lZq_q_Yi2fLNq2Mb”,“realm”:“Username-Password-Authentication”,“session_user”:“5f420bffc95c690037a0b819”}”
},
“qs”: {},
“connection”: “Username-Password-Authentication”,
“error”: {
“message”: “Cannot convert undefined or null to object”,
“oauthError”: “access_denied”,
“type”: “oauth-authorization”
},
“session_id”: “hhN6aK_DQoDEGiyg66drX7PGTqP9JNzU”
}
Please Help me.

That type of error may surface due to a custom rule; if you have custom rules enabled in your tenant you should as a first test disable all rules and see if you still experience the same issue. If you don’t, you’ll know it’s from a rule so you would need to troubleshoot them further.