Error message

• Deprecated function: Unparenthesized `a ? b : c ? d : e` is deprecated. Use either `(a ? b : c) ? d : e` or `a ? b : (c ? d : e)` in require() (line 5 of /opt/ins-kos/dspace-custom/apache/drupal/sites/ps.ntev.gr/modules/parchive/parchive.module).
• Deprecated function: Unparenthesized `a ? b : c ? d : e` is deprecated. Use either `(a ? b : c) ? d : e` or `a ? b : (c ? d : e)` in require() (line 5 of /opt/ins-kos/dspace-custom/apache/drupal/sites/ps.ntev.gr/modules/parchive/parchive.module).