Apparently you need to pay to get a key from jwplayer.com. That used to be a free feature to use the player (which had a watermark for free accounts).
Since JW Player is not the main player for AllVideos either way (Clappr.js is) and since the next update of AllVideos will focus on standards and removing legacy formats, if you don't wish to pay, don't bother with JWPlayer.
Fotis / JoomlaWorks Support Team
---
Please search the forum before posting a new topic :)