amazon ec2 – aws optimized linux fills up disk space

I have a Spring Boot application that runs inside docker in aws ecs linux optimized,
my instance has a volume of 100 gb attached ebs, when I am running "docker window information" in the instance I got that the "data space used:" is approximately 90 GB also if I do lvs or lvdisply I can see that really the storage is full
but when I'm doing df -h I see that the storage is not full and I can not find any data of the 90GB in the instance.
My question is, where can I find the 90 GB of the data and how can I eliminate it?
I think it's like something stored in the virtual disk and I can not find it

Thank you