HP Probook x360 11 g3

[Ismail-U50]

Need help on this file any time it connected to the internet it showing lost/stolen need to return to the initial owner
please will be glad to fix the solution here
here is the info:
HP Probook x360 11 g3
Board number :BALOS-6050A3009601-MB-A01(A1)
S/N:5CG9292WRJ