SQLSTATE[22P02]: Invalid text representation: 7 ERROR:  invalid input syntax for type integer: ""

    Stack trace: 
                 #0 /data/plivamed-www/plivamed/inc/application/plivamed/models/PublicationIssueNews.php(446): PDOStatement->execute()
                 #1 /data/plivamed-www/plivamed/inc/application/plivamed/section/snippets/MedicusNewsBoxSnippet.php(30): PublicationIssueNews::loadMultiple()
                 #2 /data/plivamed-www/plivamed/inc/application/plivamed/section/snippets/MedicusNewsBoxSnippet.php(58): MedicusNewsBoxSnippet->getLatestNewsFromCategories()
                 #3 /data/plivamed-www/plivamed/inc/application/common-portal/PortalFrontEndApplicationSection.php(59): MedicusNewsBoxSnippet->run()
                 #4 /data/plivamed-www/plivamed/inc/application/ApplicationSection.php(41): PortalFrontEndApplicationSection->default_action()
                 #5 /data/plivamed-www/plivamed/inc/application/common-portal/PortalApplicationSection.php(55): ApplicationSection->handle()
                 #6 /data/plivamed-www/plivamed/inc/application/common-portal/PortalFrontEndApplicationSection.php(28): PortalApplicationSection->handle()
                 #7 /data/plivamed-www/plivamed/inc/application/Application.php(53): PortalFrontEndApplicationSection->handle()
                 #8 /data/plivamed-www/plivamed/inc/application/Application.php(477): Application->dispatch()
                 #9 /data/plivamed-www/plivamed/inc/application/PortalApplication.php(160): Application->main()
                 #10 /data/plivamed-www/plivamed/inc/application/plivamed/PlivaMed.php(453): PortalApplication->main()
                 #11 /data/plivamed-www/plivamed/mod_application.php(34): PlivaMed->main()
                 #12 /data/plivamed-www/plivamed/index.php(788): mod_application()
                 #13 /data/plivamed-www/plivamed/index.php(663): do_layout()