OK, did that. error messages on-screen as follows:
Warning: move_uploaded_file(/var/www/vhosts/wealthadvisoryservices.co.uk/httpdocs/mktrev/lorem_ipsum copy 2.txt) [function.move-uploaded-file]: failed to open stream: Permission denied in /var/www/vhosts/wealthadvisoryservices.co.uk/httpdocs/WA_DigitalFilePro/HelperPHP.php on line 145
Warning: move_uploaded_file() [function.move-uploaded-file]: Unable to move '/tmp/phpYPbKJS' to '/var/www/vhosts/wealthadvisoryservices.co.uk/httpdocs/mktrev/lorem_ipsum copy 2.txt' in /var/www/vhosts/wealthadvisoryservices.co.uk/httpdocs/WA_DigitalFilePro/HelperPHP.php on line 145
I added a binding to the debug info on this page and this was what appeared on screen:
Status object: WA_UploadResult1
statusCode : -1
errorMessage :
clientFileName : lorem_ipsum copy 2.txt
fileExtension : txt
serverFileName :
serverDirectory : /var/www/vhosts/wealthadvisoryservices.co.uk/httpdocs/mktrev/
contentType : text/plain
fileWasOverwritten :
fileWasSkipped :
fileWasRenamed :
fileSize : 2744
isImage :
imageWidth : -1
imageHeight : -1
uploadFolder : /var/www/vhosts/wealthadvisoryservices.co.uk/httpdocs/client_admin/../mktrev