Thx for your answer,
I finally emailed the owner of the post on linux hint & he told me to remove the libssl.so.10 like as advised by a member of the Autdsk staff on their forum :
Autdsk forum
I tried (changing maya2017 for 2019 obviously), nothing happened. Same error than before.
So I decided to get rid of the "libOGSDeviceOGL4-16.so" cause maybe it was part of the solution. And...
Maya start !
But now there's a problem in the color system/graphic device (Even if rendering is ok).
VP2 Error : Failed to initialize graphics device.
Error: The GPU adaptor of the transform to finalize is null
Error: Failed to apply color management settings on file open: Failed to finalize the color transform..
Error: The GPU adaptor of the transform to finalize is null
Error: Failed to finalize the color transform.
Unable to execute igInitialize.mel.Unable to execute xgen.mel.
API error detected in /local/S/Maya_2019_DI/src/Maya/src/Type/pluginMain.cpp at line 163
: (kFailure): Unexpected Internal Failure
API error detected in plugins/mtoa/extension/ExtensionsManager.cpp at line 655
: (kFailure): Unexpected Internal Failure
API error detected in plugins/mtoa/extension/ExtensionsManager.cpp at line 655
: (kFailure): Unexpected Internal Failure
At least I can use the software...I'm going to add libssl.so.10 in the lib folder to see if it changes something else...