SSL Error:“unsupported certificate purpose” for HAProxy's client - ssl

Question

I'm trying to set up client certificate authentication using HAProxy.
With OpenSSL, I have created a certificate chain as (CA cert --> Intermediate cert --> Server Cert) and After signing Intermediate with CA key and server cert with Intermediate key, I concat then in a sequence of (server-cert.pem + Intermediate-cert.pem + Root-cert.pem + Server-key.pem)
[root#ip-172-31-0-168 /]# cd /etc/ssl/CertChain
[root#ip-172-31-0-168 CertChain]# ls -la
total 52
drwxr-xr-x 2 root root 265 Jul 15 14:39 .
drwxr-xr-x 7 root root 86 Jul 15 13:29 ..
-rw-r--r-- 1 root root 2114 Jul 15 13:34 ca-cert.pem
-rw-r--r-- 1 root root 17 Jul 15 13:53 ca-cert.srl
-rw-r--r-- 1 root root 3268 Jul 15 13:34 ca-key.pem
-rw-r--r-- 1 root root 9374 Jul 15 14:39 haproxySSLFile.pem
-rw-r--r-- 1 root root 2000 Jul 15 13:53 Intermidate-cert.pem
-rw-r--r-- 1 root root 17 Jul 15 14:01 Intermidate-cert.srl
-rw-r--r-- 1 root root 3272 Jul 15 13:51 Intermidate-key.pem
-rw-r--r-- 1 root root 1781 Jul 15 13:51 Intermidate-req.pem
-rw-r--r-- 1 root root 1988 Jul 15 14:01 server-cert.pem
-rw-r--r-- 1 root root 3272 Jul 15 13:56 server-key.pem
-rw-r--r-- 1 root root 1769 Jul 15 13:56 server-req.pem
The highlighted file is the concatenated version of certificates, the location of the file I have placed within the HAProxy config file.
Once Haproxy is up and running I download CA-Cert.pem file from ssl cert directories and to test ssl encryption I choose postman(Client) where I upload that CA-Cert.pem file.
bind *:80
bind *:443 ssl crt /etc/ssl/CertChain/haproxySSLFile.pem
redirect scheme https if !{ ssl_fc }
mode http
default_backend apps
After Running this through postman(Client), I'm getting ( SSL Error: Unsupported certificate purpose)
Certificate purposes:
SSL client : Yes
SSL client CA : No
SSL server : Yes
SSL server CA : No
Netscape SSL server : Yes
Netscape SSL server CA : No
S/MIME signing : Yes
S/MIME signing CA : No
S/MIME encryption : Yes
S/MIME encryption CA : No
CRL signing : Yes
CRL signing CA : No
Any Purpose : Yes
Any Purpose CA : Yes
OCSP helper : Yes
OCSP helper CA : No
Time Stamp signing : No
Time Stamp signing CA : No
Above is the list of certificate purposes, that is already defined. I'm not able to figure out what should be the specific purposes I need to specify as my goal is to encrypt/decrypt the incoming traffic through SSL for Haproxy.
Postman(Client) Error Summary
I've spent many hours attempting to figure out what the issue is, but I'm no closer.
So I would greatly appreciate any help!