After closing, cannot open again without forcing quit

[TylerLaBree]

I'm on the 0.5.1 flatpak, and when I close the app using the x in the top-right, Datcord remains running in the background. When I try to open it again using the app icon in gnome, or by using flatpak run io.github.gamingdoom.Datcord, I get the following popup window,

and in the latter case, the following error,

Running in background
JavaScript error: resource://gre/modules/XULStore.sys.mjs, line 60: Error: Can't find profile directory.
JavaScript error: resource://gre/modules/XULStore.sys.mjs, line 60: Error: Can't find profile directory.
JavaScript error: resource://gre/modules/XULStore.sys.mjs, line 60: Error: Can't find profile directory.
JavaScript error: resource://gre/modules/XULStore.sys.mjs, line 60: Error: Can't find profile directory.
JavaScript error: resource://gre/modules/XULStore.sys.mjs, line 60: Error: Can't find profile directory.
console.error: (new UnknownError("IndexedDB: main/url-classifier-skip-urls getLastModified() IndexedDB:   The operation failed for reasons unrelated to the database itself and not covered by any other error code.", "resource://services-settings/IDBHelpers.jsm", 18))
*** You are running in headless mode.

I must then close the app using gnome's background apps feature or killall datcord before I can open it again.