MIPS "Invalid language element:" on symbol names like 1try_msg [duplicate]
You left out a crucial part of the error message, namely what the invalid language element was.
What the assembler is complaining about is the label 1dimensional. It's common for assemblers to only allow letters and underscores (and possibly a single .) as the first character of a label. So change the name of that label to something that meets that requirement, e.g. onedimensional.