Unable to Access Internet Websites via VPN

Validus

I am trying to setup my VPN to route all traffic through my Raspberry Pi.

The internal IP address of my router is 192.168.1.1.

The internal IP address of my Raspberry Pi is 192.168.1.3.

OpenVPN and Pi-hole are currently installed on my Raspberry Pi.

I am currently using the OpenVPN Connect app on my Android mobile.

When connected to my VPN via mobile data I am able to access my internal IP addresses but not internet websites.

Any assistance to allow me to access internet websites and my internal IP addresses when connected to my VPN via mobile data would be most appreciated.

My server.conf file states:

local 192.168.1.3
dev tun
proto udp
port 4444
ca /etc/openvpn/easy-rsa/pki/ca.crt
cert /etc/openvpn/easy-rsa/pki/issued/Raspberry_*REDACTED*.crt
key /etc/openvpn/easy-rsa/pki/private/Raspberry_*REDACTED*.key
dh none
topology subnet
server 10.8.0.0 255.255.255.0
push "route 192.168.1.1 255.255.255.0"
push "route 192.168.1.3 255.255.255.0"
push "redirect-gateway def1 bypass-dhcp"
push "dhcp-option DNS 192.168.1.3"
push "block-outside-dns"
client-to-client
keepalive 1800 3600
remote-cert-tls client
tls-version-min 1.2
tls-crypt /etc/openvpn/easy-rsa/pki/ta.key
cipher AES-256-CBC
auth SHA256
user nobody
group nogroup
persist-key
persist-tun
crl-verify /etc/openvpn/crl.pem
status /var/log/openvpn-status.log 20
status-version 3
syslog
verb 3

My client file states:

client
dev tun
proto udp
remote *REDACTED*.ddns.net 4444
resolv-retry infinite
nobind
user nobody
group nobody
persist-key
persist-tun
remote-cert-tls server
tls-version-min 1.2
verify-x509-name Raspberry_*REDACTED* name
cipher AES-256-CBC
auth SHA256
auth-nocache
verb 3
<ca>
-----BEGIN CERTIFICATE-----
*REDACTED*
-----END CERTIFICATE-----
</ca>
<cert>
-----BEGIN CERTIFICATE-----
*REDACTED*
-----END CERTIFICATE-----
</cert>
<key>
-----BEGIN ENCRYPTED PRIVATE KEY-----
*REDACTED*
-----END ENCRYPTED PRIVATE KEY-----
</key>
<tls-crypt>
#
# 2048 bit OpenVPN static key
#
-----BEGIN OpenVPN Static key V1-----
*REDACTED*
-----END OpenVPN Static key V1-----
</tls-crypt>

appswert

I'm not an expert, but according to: https://openvpn.net/community-resources/how-to/#redirect
"The server will need to be configured to deal with this traffic somehow, such as by NATing it to the internet, or routing it through the server site’s HTTP proxy."

Have you done something like this?
So I would asume that the requests to open a website arrive at your servers tun interface and then have no way to reach the www.

Greetings
Benjamin