I am facing 500 error all of sudden while logging in invoice ninja. I am using 5.4.12 version.
I have upgraded my database to 8.1 after the error.
Please see the error code below :
bool must be compatible with Egulias\EmailValidator\Validation\EmailValidation::isValid($email, Egulias\EmailValidator\EmailLexer $emailLexer) in /home/mydig100/invoices.DOMAINNAME/vendor/egulias/email-validator/src/Validation/MessageIDValidation.php on line 23