502 Server Error

An HTTP 502 error is a bad gateway. It may be Nginx saying that PHP-FPM is not responding in a timely manner.
If you have root access or the log files are accessible to your user, then take a peek at the logs in the /opt/bitnami/nginx/logs/ directory.
Link: https://docs.bitnami.com/aws/infrastructure/nginx/troubleshooting/debug-errors-nginx/

If you have SSH access, then you can either deactivate the plugin with WP-CLI or move the plugin’s directory.

WP-CLI in SSH:
wp plugin deactivate w3-total-cache

If you receive some error, then try:
wp –skip-plugins –skip-themes plugin deactivate w3-total-cache

Move the plugin’s directory:
cd ~/public_html/wp-content/plugins; mv w3-total-cache ../

If you either move the directory or deactivate skip loading plugins, then you may have to delete a couple of files:
rm -i ~/public_html/wp-content/{advanced,object}-cache.php

To activate the plugin once again, use the /wp-admin/plugins.php page or use WP-CLI:
wp plugin activate w3-total-cache

Hello @ytrewq37,

I am sorry about the issue you are experiencing.
Thank you @joemoto for the information provided.
@ytrewq37 can you please follow the instructions above?
You can also manually delete the following:
wp-content files and folders
– cache folder
– w3tc-config folder
– object-cache.php (if exists)
– advanced-cache.php (if exists)
– dbcache.php (if exists)
– upgrade folder
– in wp-content/plugins/w3-total-cache
Thank you!