NullPointer Exception in some devices

[jaime-gomez]

Describe the bug
java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.io.File.getPath()' on a null object reference
at linc.com.amplituda.FileManager.(SourceFile:19)
at linc.com.amplituda.Amplituda.(SourceFile:6)

To Reproduce
This happens in some devices

FileManager(final Context context) {
resources = context.getResources();
cache = context.getExternalCacheDir()
.getPath() + File.separator;
}

context.getExternalCacheDir() returns null

Expected behavior
no crash happens

Screenshots
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Desktop (please complete the following information):

• OS: [e.g. iOS]
• Browser [e.g. chrome, safari]
• Version [e.g. 22]

Smartphone (please complete the following information):

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]

Additional context
Add any other context about the problem here.