There are more than 35/42 @ Minical tokens
This message warns you that, within a minicalendar token box there are more than 35 Minical @ tokens (in the case of a 5-week minical) or more than 42 (in the case of a 6-week minical). These extra tokens will be ignored and will remain as "@" in the output file.
Note that this message will also occur if you are using absolute offsets in you minicalendars (ie. have 42 @, although you have a minicalendar token beginning on the first of the month).