Error message

• Warning: Trying to access array offset on value of type null in tb_megamenu_sync_config() (line 349 of /home/seryfaon/public_html/sites/all/modules/tb_megamenu/tb_megamenu.functions.inc).
• Warning: Trying to access array offset on value of type null in tb_megamenu_sync_config() (line 370 of /home/seryfaon/public_html/sites/all/modules/tb_megamenu/tb_megamenu.functions.inc).
• Warning: Trying to access array offset on value of type null in tb_megamenu_sync_config() (line 349 of /home/seryfaon/public_html/sites/all/modules/tb_megamenu/tb_megamenu.functions.inc).
• Warning: Trying to access array offset on value of type null in tb_megamenu_sync_config() (line 370 of /home/seryfaon/public_html/sites/all/modules/tb_megamenu/tb_megamenu.functions.inc).