Index: openacs-4/packages/acs-tcl/tcl/apm-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-tcl/tcl/apm-procs.tcl,v
diff -u -r1.95.2.2 -r1.95.2.3
--- openacs-4/packages/acs-tcl/tcl/apm-procs.tcl	25 Sep 2015 08:44:32 -0000	1.95.2.2
+++ openacs-4/packages/acs-tcl/tcl/apm-procs.tcl	26 Sep 2015 11:25:22 -0000	1.95.2.3
@@ -908,11 +908,14 @@
 ad_proc -private apm_package_installed_p_not_cached {
     package_key
 } {
-    return [db_string apm_package_installed_p {
-      select 1 from apm_package_versions
-      where package_key = :package_key
-      and installed_p = 't'
-    } -default 0]
+    if {[catch {set installed_p [db_string apm_package_installed_p {
+        select 1 from apm_package_versions
+        where package_key = :package_key
+        and installed_p = 't'
+    } -default 0]}]} {
+        set installed_p 0
+    }
+    return $installed_p
 }
 
 ad_proc -public apm_package_enabled_p {