diff --git a/about.pl b/about.pl
index 4bc0c29725..89beb0213a 100755
--- a/about.pl
+++ b/about.pl
@@ -46,6 +46,7 @@ use Koha::BackgroundJob;
 use Koha::BiblioFrameworks;
 use Koha::Biblios;
 use Koha::Email;
+use Koha::I18N;
 use Koha::Patron::Categories;
 use Koha::Patrons;
 use Koha::Caches;
@@ -284,6 +285,10 @@ if ( !defined C4::Context->config('use_zebra_facets') ) {
     push @xml_config_warnings, { error => 'use_zebra_facets_entry_missing' };
 }
 
+unless ( Koha::I18N->_base_directory ) {
+    $template->param( warnI18nMissing => 1 );
+}
+
 # ILL module checks
 if ( C4::Context->preference('ILLModule') ) {
     my $warnILLConfiguration = 0;
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/about.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/about.tt
index cf1190e3f1..eb12c881f7 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/about.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/about.tt
@@ -215,7 +215,7 @@
         </div>
 
         <div id="sysinfo">
-    [% IF warnPrefBiblioAddsAuthorities || warnPrefEasyAnalyticalRecords || warnPrefAnonymousPatronOPACPrivacy || warnPrefAnonymousPatronAnonSuggestions || warnPrefAnonymousPatronOPACPrivacy_PatronDoesNotExist || warnPrefAnonymousPatronAnonSuggestions_PatronDoesNotExist || warnPrefKohaAdminEmailAddress || warnPrefOpacHiddenItems || invalid_yesno.count || warnNoActiveCurrency || warnIsRootUser || xml_config_warnings.size || AutoSelfCheckPatronDoesNotHaveSelfCheckPerm || AutoSelfCheckPatronHasTooManyPerm || warnStatisticsFieldsError || warnNoTemplateCaching || warnILLConfiguration || has_ai_issues || oauth2_missing_deps || bad_yaml_prefs || warnRelationships || log4perl_errors || config_bcrypt_settings_no_set || warnHiddenBiblionumbers.size || warnConnectBroker || elasticsearch_has_missing %]
+    [% IF warnPrefBiblioAddsAuthorities || warnPrefEasyAnalyticalRecords || warnPrefAnonymousPatronOPACPrivacy || warnPrefAnonymousPatronAnonSuggestions || warnPrefAnonymousPatronOPACPrivacy_PatronDoesNotExist || warnPrefAnonymousPatronAnonSuggestions_PatronDoesNotExist || warnPrefKohaAdminEmailAddress || warnPrefOpacHiddenItems || invalid_yesno.count || warnNoActiveCurrency || warnIsRootUser || xml_config_warnings.size || warnI18nMissing || AutoSelfCheckPatronDoesNotHaveSelfCheckPerm || AutoSelfCheckPatronHasTooManyPerm || warnStatisticsFieldsError || warnNoTemplateCaching || warnILLConfiguration || has_ai_issues || oauth2_missing_deps || bad_yaml_prefs || warnRelationships || log4perl_errors || config_bcrypt_settings_no_set || warnHiddenBiblionumbers.size || warnConnectBroker || elasticsearch_has_missing %]
         [% IF (warnIsRootUser) %]
             <h2>Warning regarding current user</h2>
             <p>You are logged in as the database administrative user. This is not recommended because some parts of Koha will not function as expected when using this account.</p>
@@ -299,7 +299,7 @@
             Contact your system administrator.
         [% END %]
 
-        [% IF warnPrefBiblioAddsAuthorities || warnPrefEasyAnalyticalRecords || warnPrefAnonymousPatronOPACPrivacy || warnPrefAnonymousPatronAnonSuggestions || warnPrefAnonymousPatronOPACPrivacy_PatronDoesNotExist || warnPrefAnonymousPatronAnonSuggestions_PatronDoesNotExist || warnPrefKohaAdminEmailAddress || warnPrefOpacHiddenItems || invalid_yesno.count || warnNoActiveCurrency || AutoSelfCheckPatronDoesNotHaveSelfCheckPerm || AutoSelfCheckPatronHasTooManyPerm || warnStatisticsFieldsError || warnNoTemplateCaching || warnILLConfiguration || warnXSLT || oauth2_missing_deps || bad_yaml_prefs || warnIssuingRules || config_bcrypt_settings_no_set || warnHiddenBiblionumbers.size %]
+        [% IF warnPrefBiblioAddsAuthorities || warnPrefEasyAnalyticalRecords || warnPrefAnonymousPatronOPACPrivacy || warnPrefAnonymousPatronAnonSuggestions || warnPrefAnonymousPatronOPACPrivacy_PatronDoesNotExist || warnPrefAnonymousPatronAnonSuggestions_PatronDoesNotExist || warnPrefKohaAdminEmailAddress || warnPrefOpacHiddenItems || invalid_yesno.count || warnNoActiveCurrency || AutoSelfCheckPatronDoesNotHaveSelfCheckPerm || AutoSelfCheckPatronHasTooManyPerm || warnStatisticsFieldsError || warnNoTemplateCaching || warnI18nMissing || warnILLConfiguration || warnXSLT || oauth2_missing_deps || bad_yaml_prefs || warnIssuingRules || config_bcrypt_settings_no_set || warnHiddenBiblionumbers.size %]
             <h2>Warnings regarding the system configuration</h2>
             <table>
                 <caption>Preferences and parameters</caption>
@@ -359,6 +359,14 @@
                     That will bring a performance boost to enable it.
                     </td></tr>
                 [% END %]
+                [% IF warnI18nMissing %]
+                    <tr>
+                        <th scope="row"><strong>Warning</strong> </th>
+                        <td>
+                            The PO directory has not been found. See <a href="https://wiki.koha-community.org/wiki/Translation_files">the dedicated wiki page</a> for more information.
+                        </td>
+                    </tr>
+                [% END %]
                 [% IF warnILLConfiguration %]
                   [% IF no_ill_backends %]
                     <tr><th scope="row"><strong>Warning</strong> </th><td>