Can't backup due to PKIX path building failed - unable to find valid certification path to requested target

Troubleshooting Backup Client

• 'ERROR A backup could not be created. Reason: Lexing failed on line: 1..' When creating a backup using the backup client
• Backup client fails due to the error: One or more database connections were not closed within the allotted timeout
• Backup client - Operations from one or more SCMs did not finish within the allotted timeout
• Backup client restore fails due to Out of Memory or GC overhead limit exceeded
• Can't backup due to PKIX path building failed - unable to find valid certification path to requested target
• Could not restore the backup - Attempted reconnect 3 times. Giving up.
• Could not restore the backup to a MySQL database - Reason: The database schema could not be restored.
• No Subject Alternative Names
• Restore does not work - The configured JDBC driver, com.mysql.jdbc.Driver, is not available on the classpath
• Restore fails with FileNotFoundException - Permission denied
• Restore fails with password authentication failed for user
• Stash backup client - 401 Unauthorized
• Stash backup fails - Read timed out
• Stash hits OOME when SBC is backing up sta_shared_lob table
• The backup on the server has become unresponsive and has not progressed in 300 seconds
• The Stash backup directory cannot be located in Stash home