Question addon is missing after confluence upgrade to 5.10.2

[Martin Cote]

The addon is disapear after I have upgrade to Confluence 5.10.2 (Originally, 5.9). I no longer see the addon in the user installed list. The Question Addon was in Trial mode. 

I see the Question addon into "Find new addon" section. When I clicked on "Buy now", I have an error. I already entered question that I don't want to loose.

Do you know how to repair this?

I used the "confluence server", installed on Windows 2012 environment

[Steven F Behnke]

If your trial has expired, perhaps clearing out the expired key will allow you to proceed.

[Guilherme V.]

Hi there, 

Maybe the cache got corrupted:

# Shutdown Confluence
# Delete the following folders
#* <confluence-home>/bundled-plugins
#* <confluence-home>/plugins-cache
#* <confluence-home>/plugins-osgi-cache
#* <confluence-home>/plugins-temp
#* <confluence-home>/bundled-plugins_language
# Start Confluence

[Martin Cote]

I tried what you said but the Question addon is not working. I tried to reinstall too buy clicking on "Buy now" (the only available button) and I have an error. I didn't see something significant into the log file.

Any other ideas?