Error Installation Opigno 2.19 on Shared Hosting

Every time I tried to install Opigno 2.19 on my Shared Hosting Hostinger. I have this error: An AJAX HTTP error occurred. HTTP Result Code: 200 Debugging information follows. Path: /core/install.php?rewrite=ok&profile=opigno_lms&langcode=fr&id=1&op=do_nojs&op=do StatusText: OK ResponseText: ParseError: syntax error, unexpected 'const' (T_CONST), expecting variable (T_VARIABLE) in Composer\Autoload\includeFile() I had no problem with Opigno 1 (Drupal 7)