Description of problem:
Crash when trying to play a song

Version-Release number of selected component (if applicable):
clementine-1.3.1-23.fc28.x86_64

How reproducible:
Add a song folder then play it 

Steps to Reproduce:
1.
2.
3.

Actual results:
clementine
21:20:57.590 WARN  unknown                          libpng warning: iCCP: known incorrect sRGB profile 
21:20:57.699 WARN  unknown                          QPainter::begin: Paint device returned engine == 0, type: 2 
21:20:57.805 WARN  unknown                          Object::connect: No such signal QtSingleApplication::messageReceived(QByteArray) 
21:20:57.805 WARN  unknown                          Object::connect:  (sender name:   'clementine') 
21:20:57.805 WARN  unknown                          Object::connect:  (receiver name: 'MainWindow') 
21:20:58.220 ERROR unknown                          JSonScanner::yylex - error while reading from io device  
21:20:58.220 ERROR unknown                          json_parser - syntax error found,  forcing abort, Line 1 Column 1  
/usr/include/c++/8/bits/stl_vector.h:932: std::vector<_Tp, _Alloc>::reference std::vector<_Tp, _Alloc>::operator[](std::vector<_Tp, _Alloc>::size_type) [with _Tp = float; _Alloc = std::allocator<float>; std::vector<_Tp, _Alloc>::reference = float&; std::vector<_Tp, _Alloc>::size_type = long unsigned int]: Assertion '__builtin_expect(__n < this->size(), true)' failed.
Aborted (core dumped)


Expected results:
playing music  song

Additional info: