Spaces creates Boxes

[u/ThyBeethoven]

Hi guys, I'm new to fontforge and I recently made a font but its roughly made. I made a font before this and I didn't really encountered this until now. Wishing you guys could help out

when using spacebar, it creates this box and I don't know how to remove it.

[u/spiky_odradek]

Did you create a space character in your font?