Error message

• Deprecated function: Return type of DateObject::__wakeup() should either be compatible with DateTime::__wakeup(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in include_once() (line 158 of /home/makchem/public_html/sites/all/modules/date/date_api/date_api.module).
• Deprecated function: Return type of DateObject::format($format, $force = false) should either be compatible with DateTime::format(string $format): string, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in include_once() (line 158 of /home/makchem/public_html/sites/all/modules/date/date_api/date_api.module).
• Deprecated function: Return type of DateObject::setTimezone($tz, $force = false) should either be compatible with DateTime::setTimezone(DateTimeZone $timezone): DateTime, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in include_once() (line 158 of /home/makchem/public_html/sites/all/modules/date/date_api/date_api.module).
• Warning: include_once(/home/makchem/public_html/themes/engines/phptemplate/phptemplate.engine): Failed to open stream: No such file or directory in include_once() (line 209 of /home/makchem/public_html/includes/theme.inc).
• Warning: include_once(): Failed opening '/home/makchem/public_html/themes/engines/phptemplate/phptemplate.engine' for inclusion (include_path='.:/opt/cpanel/ea-php81/root/usr/share/pear') in include_once() (line 209 of /home/makchem/public_html/includes/theme.inc).