Sometimes, when you create account using Google at the time of buying hosting, then I see the error of incorrect login details at the time of login. To get rid of it, please follow the below steps:
1. Firstly login to Hostinger Dashboard
2. Then Click Profile Icon In Right Side Corner
3. Then Click Account Information
4. Then Scroll Down Then You See Social logins
5. Click On Unlink and Then You See option To set Password
