What is this engine bay leak?

2007 Ford Transit 2.2L 444000km on the clock.
I went to check out this van but found this whole lot of oil down on the left side of the engine close to the timing chain cover.
What is this leak anybody have any advice.
BTW new user here hopefully I found the right forum to help me get the right van. Thanks.

As a new user I was only allowed to upload 1 image.
I have more pics but this was the best image for now.