I recently started to get this error when I try to send a POST request and not sure how I fix it, this is the first time in a year I have seen volley crash.

E/Volley: [1157] NetworkDispatcher.processRequest: Unhandled exception java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference
java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference
at java.net.URLEncoder.encode(URLEncoder.java:204)
at com.android.volley.Request.encodeParameters(Request.java:491)
at com.android.volley.Request.getBody(Request.java:477)
at com.android.volley.toolbox.HurlStack.addBodyIfExists(HurlStack.java:245)
at com.android.volley.toolbox.HurlStack.setConnectionParametersForRequest(HurlStack.java:219)
at com.android.volley.toolbox.HurlStack.executeRequest(HurlStack.java:97)
at com.android.volley.toolbox.BasicNetwork.performRequest(BasicNetwork.java:131)
at com.android.volley.NetworkDispatcher.processRequest(NetworkDispatcher.java:120)
at com.android.volley.NetworkDispatcher.run(NetworkDispatcher.java:87)