Error message

• Notice: Trying to access array offset on value of type null in _webform_client_form_rule_check() (line 2079 of /home/asbmus/public_html/sites/all/modules/webform/webform.module).
• Notice: Trying to access array offset on value of type null in _webform_client_form_rule_check() (line 2079 of /home/asbmus/public_html/sites/all/modules/webform/webform.module).
• Deprecated function: Array and string offset access syntax with curly braces is deprecated in include_once() (line 3542 of /home/asbmus/public_html/includes/bootstrap.inc).