PDF files which stored in document library cannot be opened directly via Adobe Reader

When I open PDF files(Clicking on the "..." ellipsis actions menu and then selecting "Open") that are stored in the library of SharePoint2013 , it caused "An error occurred on the server ". However, in the Search Center , I can open the same file from the search results. In search result, the action menu is not "Open", but "Edit ".

< Environment configuration >

I has developed a single server of OfficeWeb application server farm using HTTP.
I am creating a OfficeWebAppsServer farm with the following command :
New-OfficeWebAppsFarm-InternalURL "URL"-AllowHttp-EditingEnabled

Client PC: Adoce Reader version 9.3.4 (update to the latest version 11 is failed too.)

PS: I use SharePoint server 2013 standard version.

Any help would be much appreciated.