Upgrading to new 4.3.3 - errors

I recevied notice the new JFBConnect 4.3.3 version was available.
The upgrade for it is gone well.
Together that I was alerted about:
- JFBCComment module
- JFBCRaccomandationsbar mudule
- Content plugin
- Custom plugin

But, trying to upgrade through joomla updater I have back the error message:
Unknown Archive type
Update path does not exist
JInstaller: :Install: Cannot find XML setup file
Unable to detect manifest file

What am I missing ?

May be can help:
Investigating on Extension Manager: Warnings I found that:
- The PHP temporary directory is not set
- Small PHP file upload size - The maximum file size for uploads is set to less than 2MB which may impact on uploading large extensions.

Many Thanks

Well,

The main component needs to be either upgraded using the built-in updater from the JFBConnect Overview page

Where ?
I have upgraded it, but really, right now I don't remeber where I clicked!
However, as you can see, it seem to be upgraded

All of the modules and plugins can be updated through the Joomla Updater

As I wrote updating I have back this error message:

Right now, if I purge, find updates, now joomla find 3 instead of 4 updates and I have back this error message:

Hi Alex,
sorry for my bad English. As I wrote you:

Looking into JFBConnect -> Oveview and Open Graph I'm alerted about 4 updates available:
- JFBCComment module
- JFBCRaccomandationsbar mudule
- Content plugin
- Custom plugin

So, I go to Extension Manager -> Update, I "Purge Cache", then "Find Updates" and joomla find 3 instead of 4 updates and I have back this error message:

Then I try to update the 3 updates found and I have back this second error message for each update (the same message for the 3 updates):

Finished, If I return into JFBConnect -> Oveview and Open Graph I'm still alerted about the 4 updates available:
- JFBCComment module
- JFBCRaccomandationsbar mudule

and
- Content plugin
- Custom plugin