Error message

• Warning: mb_strpos(): Offset not contained in string in include() (line 224 of /home/admin/web/test.ru-best.com/public_html/sites/all/themes/mucustomtheme/templates/node.tpl.php).
• Warning: mb_strpos(): Offset not contained in string in include() (line 225 of /home/admin/web/test.ru-best.com/public_html/sites/all/themes/mucustomtheme/templates/node.tpl.php).
• Warning: mb_strpos(): Offset not contained in string in include() (line 226 of /home/admin/web/test.ru-best.com/public_html/sites/all/themes/mucustomtheme/templates/node.tpl.php).