Forge Deployment problem when use submodule

My project (etc. mainrepository) contains a submodule (etc. mysubmodule). When I use classic repositories placed on a bitbucket, they are always installed correctly, in other words, the connection between Forge and Bitbucket is working properly. The problem now is when using the first git submodel.

Can someone help?

Cloning into 'default'...
Submodule 'mysubmodule' (https://[email protected]/mycompany/mysubmodule.git) registered for path 'mysubmodule'
Cloning into 'mysubmodule'...
fatal: could not read Password for 'https://[email protected]': No such device or address
fatal: clone of 'https://[email protected]/mycompany/mysubmodule.git' into submodule path 'mysubmodule' failed

I am two days lost...