can't add xml template

[CptBuko]

Hello,
I'm creating multiple services by docker / docker-compose.
When I want to add files to /var/www/phpldapadmin/templates/creation/, the container stop and print "killing all processes". After a long day of research, I saw an issue with a similar problem, but solved by replacing : /var/www/phpldapadmin/templates/creation/ by /var/www/phpldapadmin_bootstrap/templates/creation/.

I've even tried to "echo" it at startup but same error.
Is someone have an idea ?

(Sorry if I do mistakes in the message, i'm French)

CptBuko

[CptBuko]

The files I'm trying to add is a simple template based on "posixAccount". I just add the "Email" attribute to match with my actual context*