Hey, resident Table Experimenter here! The space has nothing to do with either of those things [@Hero] – fortunately it's kind of a simple fix.

Basically when you add spaces/hit the enter key for good code hygeine, spacing out your raw code for a table, that break is reflected at the [i]top[/i] of the table. (Because, uhhhhh BBCode). Since what you've done is press the enter key at least once after every row, and I presume you have a lot of rows, [i]all[/i] of those breaks have jumped to the top resulting in a huge gap.

To fix this, you should be able to join up all of the[code][row][/code]and[code][/row][/code]tags so that they're sitting in the same line with no spaces between them – like[code][/row][row][/code].

As an example in a simpler table, this:
[pre][table]
[row]
[cell]Header[/cell][cell]Header[/cell]
[/row]
[row]
[cell]Don't[/cell][cell]Open[/cell]
[/row]
[row]
[cell]Dead[/cell][cell]Inside[/cell]
[/row]
[/table][/pre]
Produces this:
[hider=Table With Too Many Spaces and a Gap at the Top]
[table]
[row]
[cell]Header[/cell][cell]Header[/cell]
[/row]
[row]
[cell]Don't[/cell][cell]Open[/cell]
[/row]
[row]
[cell]Dead[/cell][cell]Inside[/cell]
[/row]
[/table][/hider]

While this one, with the[code][row][/code]tags joined end-to-end:
[pre][table][row]
[cell]Header[/cell][cell]Header[/cell]
[/row][row]
[cell]Don't[/cell][cell]Open[/cell]
[/row][row]
[cell]Dead[/cell][cell]Inside[/cell][/row]
[/table][/pre]
Produces [i]this[/i]:
[hider=No Gaps!][table][row]
[cell]Header[/cell][cell]Header[/cell]
[/row][row]
[cell]Don't[/cell][cell]Open[/cell]
[/row][row]
[cell]Dead[/cell][cell]Inside[/cell][/row]
[/table][/hider]