when I am logged in my page seems to be proper, but when I am just visiting the page in incognito, some css are not applied & page looks weired

when I am logged in my page seems to be proper, but when I am just visiting the page in incognito, some css are not applied & page looks weired

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)