503 Service Unavailable No server is available to handle this request(HAProxy)

[sraman]

Hello @PiBa
I'am new to haproxy and ! I've tried several configurations but nothing worked so far. At the moment my haproxy returns the error "503 Service Unavailable No server is available to handle this request". On the stats page the server seams to be ready. What could cause this error? Here is my current config:
*******global
log 127.0.0.1 local0 notice
maxconn 2000
user haproxy
group haproxy

defaults
log global
mode http
timeout connect 5000ms
timeout client 50000ms
timeout server 50000ms

frontend http-in
bind *:8080

acl has_app1 path_beg /app1
acl has_app2 path_beg /app2

use_backend App1 if has_app1
use_backend App2 if has_app2

default_backend App1

backend App1
reqrep ^([^\ ]\ /)app1[/]?(.) \1\2
server app1 app1:8080 check

backend App2
reqrep ^([^\ ]\ /)app2[/]?(.) \1\2
server app2 app2:8080 check*******

[PiBa]

@sraman
This config does not look like it would be generated by the pfSense haproxy package like this.. are you sure it is the one used? the config seems okay by itself...