Unable to access openhab after installation

hi
am new to RBPi am using the model 3B i have uninstalled openhab2 on the pi but wen i try to access in i get and error 404. wen i also run the status of the openhab i have this
pi@raspberrypi:~ $ sudo systemctl status openhab2.service
● openhab2.service - openHAB 2 - empowering the smart home
Loaded: loaded (/usr/lib/systemd/system/openhab2.service; enabled; vendor
Active: active (running) since Wed 2019-08-28 21:31:02 BST; 7min ago
Docs: https://www.openhab.org/docs/
https://community.openhab.org
Main PID: 448 (java)
Tasks: 92 (limit: 2077)
Memory: 221.8M
CGroup: /system.slice/openhab2.service
└─448 /usr/bin/java -Dopenhab.home=/usr/share/openhab2 -Dopenhab.c

Aug 28 21:31:02 raspberrypi systemd[1]: Started openHAB 2 - empowering the sm
Aug 28 21:31:08 raspberrypi karaf[448]: WARNING: package org.apache.karaf.spe
Aug 28 21:31:20 raspberrypi karaf[448]: Error starting karaf activator org.ap
Aug 28 21:32:24 raspberrypi karaf[448]: WARNING: An illegal reflective access
Aug 28 21:32:24 raspberrypi karaf[448]: WARNING: Illegal reflective access by
Aug 28 21:32:24 raspberrypi karaf[448]: WARNING: Please consider reporting th
Aug 28 21:32:24 raspberrypi karaf[448]: WARNING: Use --illegal-access=warn to
Aug 28 21:32:24 raspberrypi karaf[448]: WARNING: All illegal access operation

pls i need help any one i have researched online but i havent seen a solution pls i need help
thanks

Hi, welcome

Installed or uninstalled?

How do you try to access openHAB?

It looks like it is running

Sorry in that was a mistake the correction is installed openhab2
Yes it indicates that its running and active
But i go to my browser and put in http://192.168.43.140:8080 i get the
error 404
not found
(192.168.43.140 is my pi IP address)