If you face “Error: Record Currently Unavailable” issue while saving a Visualforce page, kindly use the below soloution.

1. Enable Development Mod check box in user details.

https://www.infallibletechie.com/2012/11/how-to-enable-developer-mode-in.html

2. Open the Visualforce page.

3. In the editor below, update your page.

Note:
Error: Record Currently Unavailable occurs in many situations. The above solution is only for Visuaflorce page update.

Cheers!!!