Assuming I've been able to follow the topology from the config correctly, appears to me there's an inconsistency with the inet addresses configured on ge-0/0/1 & ge-0/0/2, the security zones and the address book.
For instance ge-0/0/1 is configured with .68, under zone FR but in address-book is SLS. The 1st policy is looking for src address FR (.50) coming into zone FR, whereas the traffic would be the opposite.
ge-0/0/1.0 .68 Zone: FRZonege-0/0/2.0 .50 Zone: SLSZoneAddress-Books:FR: 192.168.0.50SLS: 192.168.0.68
You might need to reverse either the policy & zones or the interface addressing, the latter being the easier I believe.
Also the interface addressing overlaps, although that might not contribute to the problem in this case as they are directly connected interfaces.
Hope this helps.