First of all. To get that out of the way - Which firmware (sysnand and if you have it emunand) are you on? My O3DS is on 9.7.0-25U
In case it's higher than 9.5.0 - 22E - Do you have gateway or something similar installed and did you spoof your Browser to install the Spider browser? never heard of that as I'm new in the scene
In that case it will not work for you until someone either finds an exploit like that on the new browser or they find a new kernel exploit to get Gateway or similar Things onto the new version
If you still have a backup of your 3DS on 9.2 or lower you can install gateway or similar and spoof your browser.
If you have a 9.5 backup you could use that to get the spider browser back as well.