Is it just your CPK balance that is zero, or your entire wallet missing?
In this 1507 update we moved the wallet.dat location (the whole datadir moved) to ~/.biblepay.
Please ensure your wallet.dat has been moved there too?
Also please ensure you are synced to the top per the explorer.biblepay.org or the chainz explorer.
On a side note Togo, I have found out since explorer.biblepay.org shows tx's on sidechains and main chains, I usually suggest chainz, so know that there is no offense against your explorer, just the problem that people get confused if they click on a side chain tx.
When I updated the wallet, I replaced wallet.dat in the new BiblePay folder with wallet.dat from the old BiblepayEvolution folder. If wallet.dat was missing, would my correct balance show on the Overview tab and with the command 'listaddressbalances'?
Also I am not sure why I am not listed on the Leaderboard. Boinc is running fine and my contribution history is shown on the WCG website. Maybe I should back up wallet.dat, uninstall the wallet and start from scratch?