unable to open DEX file

Can some one tell me what is wrong? I am getting below error:

01-02 19:15:09.001 22954-22954/com.makemytrip E/dalvikvm: Unable to extract+optimize DEX from '/data/data/com.makemytrip/files/apatch/file.apatch' 01-02 19:15:09.001 22954-22954/com.makemytrip E/AndFixManager: pacth java.io.IOException: unable to open DEX file at dalvik.system.DexFile.openDexFileNative(Native Method) at dalvik.system.DexFile.openDexFile(DexFile.java:296) at dalvik.system.DexFile.(DexFile.java:111) at dalvik.system.DexFile.loadDex(DexFile.java:151) at com.alipay.euler.andfix.AndFixManager.fix(AndFixManager.java:147) at com.alipay.euler.andfix.patch.PatchManager.loadPatch(PatchManager.java:214) at com.mmt.travel.app.mobile.MMTApplication.onCreate(MMTApplication.java:97) at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1013)

01-02 19:15:09.001 22954-22954/com.makemytrip E/mmt_MMTApplication: XXXXX file /storage/emulated/0/file.apatch