Restore from old version to a new version of discourse failed

[gerhard (Gerhard Schlager)]

Did you try to restore a different backup this time?

@dazuimao1990

[2019-12-10 13:08:08] Restored version: 20160405172827

@dazuimao1990

[2019-12-11 00:59:54] Restored version: 20191129144706

Also, can you take a look at the dump.sql file? It should contain something like -- Dumped by pg_dump version 9.5.12 in the first couple of lines.