@scientist1995 what make and model is your IP camera? IP address alone is not normally enough and quite often requires a specific port but also a specific url.
Most sub $100 IP cameras, until recently, don’t provide streams that comply with the Android media spec.
IP cameras that have H264 / MP4 streams are now available from $20.
This thread has some useful info regarding streaming from an Android phone to Blynk Blynk video streaming success!