in reply to Semicolon seems to be missing?

Global symbol "$twron" requires explicit package name at /scripts/non-codes.plx line 643.

The fact that no variable called $twron exists in the code you've posted, it strongly suggests that you've also omitted to post the code that the other two errors relate to.

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.

In Section Seekers of Perl Wisdom