I read this post describing a similar “Table doesn’t exist” error message… Data Export for Webportal / Specify 7.7 Upgrade - Get Help - Specify Community Forum (specifysoftware.org)
So I manually modify the DB AppVersion to 6.8.01 in the spversion table and redeployed SP-7. Unfortunately, it not solve my problem (same error message) so I put it back to 6.8.03. BTW, my SchemaVersion is 2.9.