Steps to reproduce:

1. Make sure NVDA's language is set to Serbian (possibly affects other languages as well).
2. Open the addons store, and install any available addon. In this case, I chose NVDA remote.

Actual behavior:

In the middle of the installation, the following error is logged:

ERROR - unhandled exception (21:25:01.901) - MainThread (11864):
Traceback (most recent call last):
File "gui_addonStoreGui\controls\storeDialog.pyc", line 238, in onClose
File "gui_addonStoreGui\viewModels\store.pyc", line 333, in installPending
File "gui_addonStoreGui\viewModels\store.pyc", line 350, in _doInstall
File "_addonStore\dataManager.pyc", line 274, in cacheInstalledAddon
File "json_init.pyc", line 180, in dump
File "encodings\cp1252.pyc", line 19, in encode
UnicodeEncodeError: 'charmap' codec can't encode character '\u010d' in position 50: character maps to

After this, the installation dialog is completely stuck. If I manually restart NVDA however, the addon seems to be installed completely fine. However, now, the addons store is completely broken. If I try to open it again, the following error is logged and the store does not open:

ERROR - unhandled exception (21:27:36.875) - MainThread (2120):
Traceback (most recent call last):
File "gui\blockAction.pyc", line 72, in funcWrapper
File "gui_init_.pyc", line 394, in onAddonStoreCommand
File "gui_addonStoreGui\viewModels\store.pyc", line 65, in init
File "baseObject.pyc", line 62, in get
File "baseObject.pyc", line 168, in _getPropertyViaCache
File "_addonStore\dataManager.pyc", line 305, in get_installedAddonGUICollection
File "addonHandler_init.pyc", line 392, in _addonStoreData
File "addonStore\dataManager.pyc", line 281, in getCachedInstalledAddonData
File "json_init.pyc", line 296, in load
File "json_init.pyc", line 348, in loads
File "json\decoder.pyc", line 337, in decode
File "json\decoder.pyc", line 355, in raw_decode
json.decoder.JSONDecodeError: Expecting value: line 1 column 71 (char 70)

The store is now completely unusable, unless you manually delete the "remote.json" file that was generated in the addons folder.

Expected behavior:

The store should install the addon and work normally

NVDA logs, crash dumps and other attachments:

I've pasted the errors, but if a full log is necessary, I can attach it.

System configuration

NVDA installed/portable/running from source:

Portable, but happens with installed too

NVDA version:

alpha-28809,2c337e53 (2023.3.0.28809)

Windows version:

Windows 10 22H2

Name and version of other software in use when reproducing the issue:

None

Other information about your system:

Other questions

Does the issue still occur after restarting your computer?

Yes

Have you tried any other versions of NVDA? If so, please report their behaviors.

I believe that this issue did not occur before the addons store started supporting translated addons into other languages.

If NVDA add-ons are disabled, is your problem still occurring?

Yes

Does the issue still occur after you run the COM Registration Fixing Tool in NVDA's tools menu?

NA