Fatal error: Uncaught TypeError: preg_match(): Argument #2 ($subject) must be of type string, array given in /in/sKe5U:3
Stack trace:
#0 /in/sKe5U(3): preg_match('#^[a-z0-9._-]+@...', Array)
#1 {main}
thrown in /in/sKe5U on line 3
Process exited with code 255.