Fix Chat list lost after creating Firebase Table again

Job ID: 32157322

Budget: $30 – $250 USD

On the way updating Firebase chatting app, by mistake, deleted Firebase table,
and, recreated table again.
After that, can not see Chatting list for both of old list, and, even for newly started chat.
Even when tried with former version, it was impossible to find Chat List.

Since it's impossible to see Chat list in both of current update, and, in old version,
it looks like to related with Re-Creating Firebase table.

If there is someone who can fix this, please hel through one of below option.
1) Kind instruction via Chatting to developer in charge of this chat app.
or
2) Fix bug, or, Firebase table after receiving source code, or, firebase table access.