A “white screen” (blank page) in WordPress usually means a PHP fatal error. Sometimes it happens only in /wp-admin, sometimes the whole site becomes blank.
On GARMTECH hosting, you can usually fix this without restoring the whole website by checking logs and disabling the problematic plugin/theme.
If you see the name of a plugin, theme, or missing PHP extension, fix that first.
If logs are not clear, enable WordPress debug log temporarily in wp-config.php:
define('WP_DEBUG', true);
define('WP_DEBUG_LOG', true);
define('WP_DEBUG_DISPLAY', false);
After reproducing the issue, check wp-content/debug.log and then disable debug again.
If you cannot access wp-admin:
httpdocs/wp-content/.plugins to plugins.disabled.If the site works, the issue is in a plugin. Rename the folder back and disable plugins one by one (rename individual plugin folders) to find the culprit.
If plugins are not the issue, temporarily switch the theme:
wp-content/themes/.If the website is still broken, restore the most recent backup (or restore only files/databases you need). After restore, update plugins/themes carefully to avoid repeating the issue.