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Restore a backup of your blesta.php config file.
If you can't restore a backup, you will need to reconfigure Blesta. Saving settings with the proper information will save them using the Blesta.system_key set in your blesta.php config file. So be sure to make a backup!You'll also need to reset the key pair for each of your companies.
I intentionally modified the Blesta.system_key value
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