- Can't install or update Smart Slider, receiving a PCLZIP_ERR_BAD_FORMAT error message.
Cause & solution
This PCLZIP_ERR_BAD_FORMAT message happens, because your servers unzipping program is outdated or it has an error, and it's not able to unzip our zip file. Or it also could be, that during downloading our zip file something bad happened, and your download didn't worked producing a zip file with an error. You should unzip your zip file into your computer, where if you are able to do that, your zip file doesn't have a problem, and then use the alternative method to install or update our slider: