Expiring TTCFW Question

I bought 100 TTCF Warrants in like august, they’re up 400%, but I got a letter the other day saying:

Under their original terms, Each 1 warrant entitles you to purchase 1 share of Tattooed Chef, Inc. common stock, CUSIP 87663X102, at a purchase price of
$11.50 per share.

Accordingly, by virtue of the cashless exercise of the warrants, exercising
warrant holders will receive 0.5117 of a share of Tattooed Chef, Inc. common
stock for each warrant surrendered for exercise.
All exercises of warrants will be irrevocable.

So, does that mean 100 warrants only gets me 50 shares now (@ $11.50/share)?? Is that legal? LOL. Should i just sell them all and pick up some new warrants (C. C. I. V)or just convert them to the shares?

Never did warrants but made nice profits off this so would love some advice. Thx