No Table created at Installation

I tried to install joomdle 1.1.4 (Joomla 3.8.2
At first Installation I had 2 Menu-Entries one German one english. When i try to enter configuration I get:
Fehler
Table 'kepos37.#__joomdle_field_mappings' doesn't exist
The error is reproducable. After a second installation i now have only one menu-entry (german) but the same error.
On the first installation, the deinstallation crashed my site for good and i had to restore from a backup.
Is the a way to create the tables manually?
Installation went through without error btw.

Hi.

There is no way to manually create tables, so you need to find out why installation is failing on your site.

You should try setting up a new Joomla site, and installing there, to confirm that the problem is only happening in your live site.

Check it on a clean site. Installation works without any problem

Then there's something wrong with your live installation, although I don't know what

I guess you are running mysql, right? Here I see some potential problems with Postgres instead of mysql:
forum.joomla.org/viewtopic.php?t=947730

You can try installing weblinks component to see if that installs fine...just to get some more info.

Since weblinks were installed allready i installed oziogallery which installed fine and created a table without any problem

That's weird... I don't know why Joomdle won't install correctly.....
Did you try installing once and then installing again, without uninstalling first?
I am sorry, but I cannot give you any more info from here, as this seems like a problem specific to your server

The first time i tried an uninstall, which broke my installation.
I tried again an got the mentioned two entries in the Menu (english and german) with the mentioned problem (no tables created). When i reinstall I only have one entry in the menu (now german) but still no tables.
If you like i can grant you superuser and you can check the installation yourself.
It has to be special to this installation and maybe a problem with another plugin since i can install on a clean installtion on the server.

Ok, you can send acces info to our email address, and we'll try to take a look when we can (probably sunday or next week)

Ok. no hurry. Thank you

For reference: after uninstalling and installing again, tables were created.