problems with the addon update from the dashboard :/

good morning, sorry for my bad English. I have a problem with the updating of addons from the dashboard. In Geodirectory -> Auto Updates, I alredy enter my username and license key. Yesterday,appeared on the dashboard the option to update the addons (advanced search, multi-location, among others that have installed). Try to update it, but stayed loading, said only: updating … After a while, I decided to reload the page, and disappeared the option to update addons, just let me update the Core Geodirectory (from 1.5.5 to 1.5. 6). I Update de core, but after this, no longer appear the option to update the addons from the dashboard.
What could be happening ? I need to update the addons, but do not want to delete the old version, and upload the new one, as it would lose all the settings that I already have 🙁