i got the capture the leader mission and disabled him (Banshee's Wail) and it says that i "can't board this ship"!
What should i do?

Did another message apper in the lower left corner? If so just land at the planet that you end the mission at.

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U.E. lovers Are Ignorint Of true Power.

You can't board mission critical ships like that, a message should have appeared in the bottom left corner that says something like "retrieved the captain from this ship" it's an easy message to not notice. Also check your cargo for something like "renegade captain" or maybe just "captain".

i got it, i just had too much stuff, so it showed up as multiple.
thanks!