One of our SSIS projects encountered a repeated error regarding the error as subject.

Solution:

I look at the package. It still uses the old Microsoft OLEDB driver for Oracle. And one of Windows Update was mentioned in the link below has been installed on the server.
https://support.microsoft.com/en-us/kb/3147071

So, we have to apply the post-fix to fix it. Please follow the link above to solve your problem.