Thank you @asmecher .
I could to see the error:
[13-Jan-2021 02:19:23 UTC] PHP Fatal error: Uncaught Error: Call to a member function getFileId() on null in /var/www/XXX.es/www/lib/pkp/controllers/api/file/linkAction/FileLinkAction.inc.php:46
Stack trace:
#0 /var/www/XXX.es/www/lib/pkp/controllers/api/file/linkAction/DownloadFileLinkAction.inc.php(37): FileLinkAction->getActionArgs(NULL, 5)
#1 /var/www/XXX.es/www/controllers/grid/articleGalleys/ArticleGalleyGridCellProvider.inc.php(90): DownloadFileLinkAction->__construct(Object(Request), NULL, 5, 'html')
#2 /var/www/XXX.es/www/lib/pkp/classes/controllers/grid/GridCellProvider.inc.php(56): ArticleGalleyGridCellProvider->getCellActions(Object(Request), Object(ArticleGalleyGridRow), Object(GridColumn))
#3 /var/www/XXX.es/www/lib/pkp/classes/controllers/grid/GridHandler.inc.php(1104): GridCellProvider->render(Object(Request), Object(ArticleGalleyGridRow), Object(GridColumn))
#4 /var/www/XXX.es/www/lib/pkp/class in /var/www/XXX.es/www/lib/pkp/controllers/api/file/linkAction/FileLinkAction.inc.php on line 46
I think that… if you remove file on revision stage or ¿galley? then, residual record left in the database?