Forum OpenACS Q&A: Upgrade Prob

Hello ,
I try to upgrade an 4.6.1 to the 5.2 openacs-kernel version. I followed the upgrade_4.6_to_5.0 script including postgres trick upgarde. Applied several sql pathes. Restart the serv.
After all this I get the following error:
As somebody an idea on what is going on ?
......

expected integer but got "MESSAGE"
while executing
"string repeat $num_re $group"
(procedure "lc_sepfmt" line 13)
invoked from within
"lc_sepfmt $out $grouping $sep"
(procedure "lc_numeric" line 20)
invoked from within
"lc_numeric $num $fmt en_US"
(procedure "lc_numeric" line 15)
invoked from within
"lc_numeric [whos_online::num_users]"
invoked from within
"set num_users_online [lc_numeric [whos_online::num_users]]"
("uplevel" body line 89)
invoked from within
"uplevel {
# Expects properties:
# title
# focus
# header_stuff
# section

if { ![info exists section] } {
set section {}
}

if { ![..."
(procedure "code::tcl::/usr/lib/aolserver4/servers/dotlrn/www/site-maste..." line 2)
invoked from within
"code::tcl::$__adp_stub"
invoked from within
"if { [file exists $__adp_stub.tcl] } {

# ensure that data source preparation procedure exists and is up-to-date
adp_init tcl $__adp_stub
..."
("uplevel" body line 3)
invoked from within
"uplevel {

if { [file exists $__adp_stub.tcl] } {

# ensure that data source preparation procedure exists and is up-to-date
adp_init t..."
(procedure "adp_prepare" line 2)
invoked from within
"adp_prepare "
(procedure "template::adp_parse" line 30)
invoked from within
"template::adp_parse $__adp_master [concat [list __adp_slave $__adp_output] [array get __adp_properties]]"
(procedure "template::adp_parse" line 73)
invoked from within
"template::adp_parse $__adp_master [concat [list __adp_slave $__adp_output] [array get __adp_properties]]"
(procedure "template::adp_parse" line 73)
invoked from within
"template::adp_parse [file root [ad_conn file]] {}"
(procedure "adp_parse_ad_conn_file" line 5)
invoked from within
"$handler"
("uplevel" body line 2)
invoked from within
"uplevel $code"
invoked from within
"ad_try {
$handler
} ad_script_abort val {
# do nothing
}"
invoked from within
"rp_serve_concrete_file [ad_conn file]"
(procedure "rp_serve_abstract_file" line 60)
invoked from within
"rp_serve_abstract_file "$root/$path""
("uplevel" body line 2)
invoked from within
"uplevel $code"
invoked from within
"ad_try {
rp_serve_abstract_file "$root/$path"
set tcl_url2file([ad_conn url]) [ad_conn file]
set tcl_url2path_info..."

Is there a way to manually import catalog files (not going through /acs-lang/admin which is unavailable ...)