MuzzleBrake/Compensator for Saiga 12, Molot Vepr 12

Error message

• Deprecated function: TYPO3\PharStreamWrapper\Manager::initialize(): Implicitly marking parameter $resolver as nullable is deprecated, the explicit nullable type must be used instead in include_once() (line 19 of /home/webhosting/maxrounds.com/html/old.maxrounds.com/includes/file.phar.inc).
• Deprecated function: TYPO3\PharStreamWrapper\Manager::initialize(): Implicitly marking parameter $collection as nullable is deprecated, the explicit nullable type must be used instead in include_once() (line 19 of /home/webhosting/maxrounds.com/html/old.maxrounds.com/includes/file.phar.inc).
• Deprecated function: TYPO3\PharStreamWrapper\Manager::__construct(): Implicitly marking parameter $resolver as nullable is deprecated, the explicit nullable type must be used instead in include_once() (line 19 of /home/webhosting/maxrounds.com/html/old.maxrounds.com/includes/file.phar.inc).
• Deprecated function: TYPO3\PharStreamWrapper\Manager::__construct(): Implicitly marking parameter $collection as nullable is deprecated, the explicit nullable type must be used instead in include_once() (line 19 of /home/webhosting/maxrounds.com/html/old.maxrounds.com/includes/file.phar.inc).
• Warning: ini_set(): Session ini settings cannot be changed after headers have already been sent in include_once() (line 301 of /home/webhosting/maxrounds.com/html/old.maxrounds.com/sites/default/settings.php).
• Warning: ini_set(): Session ini settings cannot be changed after headers have already been sent in include_once() (line 302 of /home/webhosting/maxrounds.com/html/old.maxrounds.com/sites/default/settings.php).
• Warning: ini_set(): Session ini settings cannot be changed after headers have already been sent in include_once() (line 310 of /home/webhosting/maxrounds.com/html/old.maxrounds.com/sites/default/settings.php).
• Warning: ini_set(): Session ini settings cannot be changed after headers have already been sent in include_once() (line 317 of /home/webhosting/maxrounds.com/html/old.maxrounds.com/sites/default/settings.php).
• Warning: ini_set(): Session ini settings cannot be changed after headers have already been sent in drupal_settings_initialize() (line 826 of /home/webhosting/maxrounds.com/html/old.maxrounds.com/includes/bootstrap.inc).
• Warning: ini_set(): Session ini settings cannot be changed after headers have already been sent in drupal_settings_initialize() (line 835 of /home/webhosting/maxrounds.com/html/old.maxrounds.com/includes/bootstrap.inc).
• Warning: session_name(): Session name cannot be changed after headers have already been sent in drupal_settings_initialize() (line 838 of /home/webhosting/maxrounds.com/html/old.maxrounds.com/includes/bootstrap.inc).