So I used Kornmans HEK to edit the lightmaps in my map, but when I saved it a hobo (Sapien Enhanced) automatically closes and creats this problem.

Couldn't read map file './guerillabeta.map'
file_read('tags\levels\practicum\practicum.bitmap') error 0x00000026 'Reached the end of the file. '
couldn't read #65536 bytes from offset #172 in local tag 'tags\levels\practicum\practicum.bitmap'
file_read('tags\levels\practicum\practicum.bitmap') error 0x00000026 'Reached the end of the file. '
couldn't read #64 bytes from offset #65708 in local tag 'tags\levels\practicum\practicum.bitmap'
couldn't read elements for bitmap_group_sequence_block block
file_read('tags\levels\practicum\practicum.bitmap') error 0x00000026 'Reached the end of the file. '
couldn't read #48 bytes from offset #65708 in local tag 'tags\levels\practicum\practicum.bitmap'
couldn't read elements for bitmap_data_block block
failed to load bitmap tag 'levels\practicum\practicum'
couldn't open tag

Anyway to fix this without having to replace the bitmap?