cannot install email manager

[email manager error]

Hello,

i already send different messages to the support of prestashop,but nobody reacts..

is this normal ??

 

i have prestashop 1.7.2

 

i have just a problem with installing the free email manager modue of prestashop. i tried via the normal way ,but then there comes an errormessage saying that they cannot copy file...

in the directory they show it looks like it want to put the module not in my theme...

 

i tried also manaully: unzip the file,place the complete unzipped folder in my modules folder ,this is ok,but then normally i have to see  that the module appears in the modules list,but it dos not show up..

what is the problem here?