Package Validation Error

Hi, I'm new to SQL and I'm having this issue with a SSIS package I'm trying to execute. The package was set up for me, so I don't know how to fix it. Basically, I have 4 files (one of which is in the message below: pl_a_refurbished) that go through the package and it comes out with new data (old data is in the database that we use), but when I try to execute it, this error message comes up:

Error at pl_a_refurbished [DTS.Pipeline]: input column "" (180) has lineage ID 118 that was not previously used in the Data Flow task.

Error at pl_a_refurbished [DTS.Pipeline]: "component "OLE DB Destination" (14)" failed validation and returned validation status "VS_NEEDSNEWMETADATA".

Error at pl_a_refurbished [DTS.Pipeline]: One or more component failed validation.

Error at pl_a_refurbished: There were errors during task validation.

(Microsoft.DataTransformationServices.VsIntegration)

If anyone knows how to help, that would be most appreciated.

Thanks