Helium - what am I missing?

[SweetSaudade]

Hi, I have been trying to back up my texts in Textra using Helium but it keeps telling me the backup failed. Is there something I'm forgetting? I did unplug my phone from my laptop once helium got itself all connected. I can't figure out why this isn't working..

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[Feldon]

SMS Backup and Restore is far superior for backing up text messages.