My opinion is that you should have put a few holes in the dpf and not completly remove it or clean it with water.
The first code you mentioned is a fault code for wich I understand no one can remove, only the dealer can do that. You need a new dpf or someone who can remap your ecu as to not include a dpf and regeneration function.
As for the aditive module the problem is that you need to fil up the additive tank and prime the additive pump. Priming can be done only by ford, they prime it electronicly.
My advice is that you should go to the ford service and and a additive fillup and reset the fault codes. Considering that you washed the dpf and not remoed it, it shoul work fine for a while.
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