Ansible - ssh connection is established between ansible and remote servers but while running the playbook getting below error

Question

Able to connect ansible and remote servers using ssh and the username and password mentioned in inventory file is correct. But getting below error. Kindly help to sort this out. 

Suspect this is due to keys

fatal: [remote-host]: UNREACHABLE! => {"changed": false, "msg": "Invalid/incorrect password: Warning: Permanently added 'i.p address' (ECDSA) to the list of known hosts.\r\n################################################################################\n#                       If you are not authorized to access                    #\n#                        or use this system, disconnect now                    #\n#                                                                              #\n#                    All actions Will be monitored and recorded!               #\n################################################################################\n\nPermission denied, please try again.", "unreachable": true}