OmniDB: OmniDB.app 2.16..0 not starting on macOS 10.14.5

Installed OmniDB using: brew cask install omnidb It starts as seen below and then immediately dies. No log files created in ~/Library/Logs/OmniDB. The system console shows:

default 12:54:23.543351 +0200 OmniDB Current system appearance, (HLTB: 1), (SLS: 0) default 12:54:23.843403 +0200 OmniDB Post-registration system appearance: (HLTB: 1) default 12:54:24.105457 +0200 OmniDB NSApp cache appearance: -NSRequiresAquaSystemAppearance: 1 -appearance: (null) -effectiveAppearance: <NSCompositeAppearance: 0x60000096ec60 ( “<NSAquaAppearance: 0x600003f44180>”, “<NSAquaAppearance: 0x600003f44200>”, “<NSSystemAppearance: 0x600003f44440>” )> default 12:54:24.810293 +0200 OmniDB Helper MessageTracer: load_domain_whitelist_search_tree:73: Search tree file’s format version number (0) is not supported default 12:54:25.314889 +0200 OmniDB Helper GVA info: preferred scaler idx 0 error 12:54:26.176371 +0200 OmniDB nw_path_close_fd Failed to close guarded necp fd 35 [9: Bad file descriptor] default 12:54:27.742428 +0200 OmniDB 27366555: RECEIVED OUT-OF-SEQUENCE NOTIFICATION: 0 vs 18265, 513, <private> default 12:54:34.167666 +0200 OmniDB LSExceptions shared instance invalidated for timeout. default 12:54:35.304771 +0200 OmniDB Helper LSExceptions shared instance invalidated for timeout.

Any ideas? Anything else I can provide? Thank you.