I also encountered this problem. The following is how I handled it.
- open the file aktt_tweet.php
- find the function link_entities()
- change the line
$str = substr_replace($str, $entity[‘replace’], $start, ($end – $start));
into
$str = mb_substr_replace($str, $entity[‘replace’], $start, ($end – $start));
- change the line
$diff += strlen($entity[‘replace’]) – ($end – $start);
into
$diff += mb_strlen($entity[‘replace’]) – ($end – $start);
- copy mb_substr_replace() from http://www.php.net/manual/en/function.substr-replace.php#90146 into the top of aktt_tweet.php
Now enjoy your twitter tools.