So sometimes including the pronoun (here: ego) is wrong. Othertimes omitting it is wrong. Some consistency, please. Both should be correct.
Please, report, and the consistency will be added from your report.
You can say also "rubeum" (rubeus,-a,-um).
The accusative case should be "rubeum"?
Yes, rubeum, accusative for rubeus (reddish color).
Rubeus is rather "ginger", between yellow and orange, I don't know if it can describe a wine, but why not?
Rubeus/Robeus= ginger/orange, reddish.
Rubrus/Ruber = red. Blood color, ruddy.
I put Vinum redrum habeo...
What's wrong in “Rubrum vinum habeo”?
Nothing. Usually the adjective follows the noun, but putting it before the noun is still grammatically correct.