Fish eyes are tough to deal with, especially when using single stage paints such as acrylic enamel. You can water sand and recoat, be sure you feather out the fish eyes well or they will show once you recoat. You can use an aggressive water sand paper, I would normally use 600 grit but 1000 will work fine as well.
When you re-paint the panel, dry spray the affected areas and let the paint flash about 10 minutes to ensure the fish eyes don't resurface. If you are confident the area is fine you can apply 1 to 2 normal wet coats. Best of luck.
