It looks a broken template.
Right codes of the place:
<{elseif $event.distance == 1}>
<font size='2'><img border='0' src='<{$block.images_url}>/<{$event.dot_gif}>' /> <{$event.start_desc}> - <{$event.end_desc}></font>
<{elseif $event.distance == 2}>
<font size='2'><img border='0' src='<{$block.images_url}>/<{$event.dot_gif}>' /> <{$event.start_desc}></font>
Upload piCal's template again and update the module.
Or, edit the template by tplsadmin or altsys.
Thanks! That fixed it. I don't know what happened, but I appreciate your help and your great module.