A PHP Error was encountered

Severity: Notice

Message: Trying to access array offset on value of type null

Filename: models/admin_model.php

Line Number: 251

A PHP Error was encountered

Severity: Warning

Message: Cannot modify header information - headers already sent by (output started at /home/c1150198/public_html/system/core/Exceptions.php:185)

Filename: helpers/url_helper.php

Line Number: 540