The current log shipping configuration is not functional because the required backup job cannot be found. You must drop the ...

The current log shipping configuration is not functional because the required backup job cannot be found. You must drop the current configuration by clearing the 'Enable this as a primary database in a log shipping configuration' checkbox. To resume log shipping, recreate the configuration using the same settings.  If you resume log shipping and you specify the backup and restore paths that you used before, any backup files from the old configuration that are uncopied or unrestored will be copied and restored by the new configuration.  Reinitializing the secondary database(s) is unnecessary.