Getting this error:

LevelDB read failure: Corruption: not an sstable (bad magic number)
2018-10-31T20:27:25Z Fatal LevelDB error: Corruption: not an sstable (bad magic number)
2018-10-31T20:27:25Z You can use -debug=leveldb to get more complete diagnostic messages
2018-10-31T20:27:25Z

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EXCEPTION: 15dbwrapper_error       
Fatal LevelDB error: Corruption: not an sstable (bad magic number)       
bitcoin in AppInit()       

2018-10-31T20:27:25Z Shutdown: In progress...
2018-10-31T20:27:25Z scheduler thread interrupt
2018-10-31T20:27:26Z Shutdown: done


Anyone know how to fix it?  I followed this guide to set it up https://github.com/Stadicus/guides/blob/master/raspibolt/raspibolt_20_pi.md