With some help from the fairies, I was able to recover my account back. Hopefully, I don't lose it again.

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[NEW PIVX WALLET 3.0.2 RELEASED]All the initial reported zPIV issues have been addressed in this release.
It is available on pivx.org as well as on the official github.
Please read the release notes from the github link below.
https://github.com/PIVX-Project/PIVX/releases/tag/v3.0.2NOTE: Plaease
AVOID spending zPIV for at least another day or two until more wallets on the network are updated to 3.0.2.
i still miss lot of coins sent to Accu with version 3.0.2
i did all in "zPIV Transaction Recovery" (Reset, ReScan) section, nothing helped so far

The same for me. A few thousand zPiv are missing even after installing 3.0.2 and did reset and rescan. I downloaded the blockchain from scratch and it did not make any improvement.
But now I found this tweet.
https://twitter.com/jakimanboy/status/921253349940326400"Until the newer $PIVX wallet is released, please avoid making any PIV or zPIV transfers. Both 3.0.0 & 3.0.2 are now old. Hang tight. #pivx"
So all we can do now is to wait again
