Cannot create syms with Symbolic toolbox installed on Linux

Hi, I have my matlab R2017b installed on a Linux machine. I installed Symbolic Math Toolbox but whenever I try to use syms method I get an exception. My code:

syms t;

The exception I get

Error using mupadmex
Error in MuPAD command: .

Error in sym>cell2ref (line 1303)
S = mupadmex(y);

Error in sym>tomupad (line 1241)
    S = cell2ref(numeric2cellstr(x));

Error in sym (line 215)
                S.s = tomupad(x);

Error in syms (line 197)
toDefine = sym(zeros(1, 0));

Error in projekt_1 (line 1)
syms t;

Here is what I get after ```ver``` command and ``` which syms -all```

```

MATLAB Version: 9.3.0.713579 (R2017b)

MATLAB License Number: 1122315

Operating System: Linux 4.18.16-arch1-1-ARCH #1 SMP PREEMPT Sat Oct 20 22:06:45 UTC 2018 x86_64

Java Version: Java 1.8.0_121-b13 with Oracle Corporation Java HotSpot(TM) 64-Bit Server VM mixed mode

-----------------------------------------------------------------------------------------------------

MATLAB Version 9.3 (R2017b)

Simulink Version 9.0 (R2017b)

Control System Toolbox Version 10.3 (R2017b)

DSP System Toolbox Version 9.5 (R2017b)

Fuzzy Logic Toolbox Version 2.3 (R2017b)

Image Processing Toolbox Version 10.1 (R2017b)

Instrument Control Toolbox Version 3.12 (R2017b)

Optimization Toolbox Version 8.0 (R2017b)

Signal Processing Toolbox Version 7.5 (R2017b)

Simulink Control Design Version 5.0 (R2017b)

Statistics and Machine Learning Toolbox Version 11.2 (R2017b)

Symbolic Math Toolbox Version 8.0 (R2017b)

```

```

>> which syms -all

/usr/local/MATLAB/R2017b/toolbox/symbolic/symbolic/syms.m

```

Thank you for your help