DotNetNuke Error: - Version 04.09.00

Unable to open the physical file "C:\AbcPub\photosigns-com-au\signage\App_Data\Database_log.ldf". Operating system error 5: "5(Access is denied.)". CREATE FILE encountered operating system error 5(Access is denied.) while attempting to open or create the physical file 'C:\AbcPub\photosigns-com-au\signage\App_Data\Database_log.ldf'. Could not open new database 'C:\ABCPUB\PHOTOSIGNS-COM-AU\SIGNAGE\APP_DATA\DATABASE.MDF'. CREATE DATABASE is aborted. An attempt to attach an auto-named database for file C:\AbcPub\photosigns-com-au\signage\App_Data\Database.mdf failed. A database with the same name exists, or specified file cannot be opened, or it is located on UNC share. File activation failure. The physical file name "C:\AbcPub\photosigns-com-au\signage\App_Data\Database_log.ldf" may be incorrect.