Unable to start HAPROXY 2.2

Hi, I am uanble to start haproxy with 2.2 version,

We were earlier running 1.7.9 version and planned to upgrade haproxy to latest version 2.2, so therefore we are using the same configuration 1.7.9 file to the latest version of haproxy as well.

Haproxy 2.2 is unable to start with the following errors:

[WARNING] 300/184709 (2527) : parsing [/var/vcap/jobs/haproxy/config/haproxy.config:548] : a 'http-request' rule placed after a 'use_backend' rule will still be processed before.
[ALERT] 300/184709 (2527) : Error(s) found in configuration file : /var/vcap/jobs/haproxy/config/haproxy.config
[ALERT] 300/184709 (2527) : Fatal errors found in configuration.
Tue Oct 27 18:47:09 UTC 2020: Errored starting HAProxy

Not sure whats happening with the error log
haproxy -vv

HA-Proxy version 2.2.1 2020/07/23 - https://haproxy.org/
Status: long-term supported branch - will stop receiving fixes around Q2 2025.
Known bugs: http://www.haproxy.org/bugs/bugs-2.2.1.html
Running on: Linux 4.15.0-117-generic #118~16.04.1-Ubuntu SMP Sat Sep 5 23:35:06 UTC 2020 x86_64
Build options :
  TARGET  = linux-glibc
  CPU     = generic
  CC      = gcc
  CFLAGS  = -O2 -g -Wall -Wextra -Wdeclaration-after-statement -fwrapv -Wno-unused-label -Wno-sign-compare -Wno-unused-parameter -Wno-clobbered -Wno-missing-field-initial

izers -Wtype-limits
  OPTIONS = USE_STATIC_PCRE=1 USE_OPENSSL=1 USE_ZLIB=1

Feature list : +EPOLL -KQUEUE +NETFILTER -PCRE -PCRE_JIT -PCRE2 -PCRE2_JIT +POLL -PRIVATE_CACHE +THREAD -PTHREAD_PSHARED +BACKTRACE +STATIC_PCRE -STATIC_PCRE2 +TPROXY +LI

NUX_TPROXY +LINUX_SPLICE +LIBCRYPT +CRYPT_H +GETADDRINFO +OPENSSL -LUA +FUTEX +ACCEPT4 +ZLIB -SLZ +CPU_AFFINITY +TFO +NS +DL +RT -DEVICEATLAS -51DEGREES -WURFL -SYSTEMD -

OBSOLETE_LINKER +PRCTL +THREAD_DUMP -EVPORTS

Default settings :
  bufsize = 16384, maxrewrite = 1024, maxpollevents =
Built with multi-threading support (MAX_THREADS=64, default=1).
Built with OpenSSL version : OpenSSL 1.0.2g  1 Mar 2016
Running on OpenSSL version : OpenSSL 1.0.2g  1 Mar 2016
OpenSSL library supports TLS extensions : yes
OpenSSL library supports SNI : yes
OpenSSL library supports : TLSv1.0 TLSv1.1 TLSv1.2
Built with network namespace support.
Built with zlib version : 1.2.8
Running on zlib version : 1.2.8
Compression algorithms supported : identity("identity"), deflate("deflate"), raw-deflate("deflate"), gzip("gzip")
Built with transparent proxy support using: IP_TRANSPARENT IPV6_TRANSPARENT IP_FREEBIND
Built with PCRE version : 8.38 2015-11-23
Running on PCRE version : 8.38 2015-11-23
PCRE library supports JIT : no (USE_PCRE_JIT not set)
Encrypted password support via crypt(3): yes
Built with gcc compiler version 5.4.0 20160609

Available polling systems :
      epoll : pref=300,  test result OK
       poll : pref=200,  test result OK
     select : pref=150,  test result OK
Total: 3 (3 usable), will use epoll.

Available multiplexer protocols :
(protocols marked as <default> cannot be specified using 'proto' keyword)
            fcgi : mode=HTTP       side=BE        mux=FCGI
       <default> : mode=HTTP       side=FE|BE     mux=H1
              h2 : mode=HTTP       side=FE|BE     mux=H2
       <default> : mode=TCP        side=FE|BE     mux=PASS

Available services : none

Available filters :
        [SPOE] spoe
        [COMP] compression
        [TRACE] trace
        [CACHE] cache
        [FCGI] fcgi-app

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