Issue regarding to create Mesh from this Tesr file in Neper by extracting information from the Image

[Noshin06]

I am working on the attached image that I have provided and extracting information to make a .tesr file by taking help from the data file generated in Python. However, I am continuously facing the issue and error given in Neper is

"noshin@tuhinm-grad06:/mnt/c/Ubantu_app_software/practise14$ neper -T -dim 2 -n from_morpho -morpho "tesr:file(clean_labels_ascii_2d.tesr)" -domain "square(4.967000,4.417000)" -regularization 0 -rsel 0.3 -o grainmap

======================== N e p e r =======================
Info : A software package for polycrystal generation and meshing.
Info : Version 4.10.1
Info : Built with: gsl|muparser|opengjk|openmp|nlopt|libscotch (full)
Info : Running on 8 threads.
Info : https://neper.info/
Info : Copyright (C) 2003-2024, and GNU GPL'd, by Romain Quey.
Info : No initialization file found (/home/noshin/.neperrc'). Info : --------------------------------------------------------------- Info : MODULE -T loaded with arguments: Info : [ini file] (none) Info : [com line] -dim 2 -n from_morpho -morpho tesr:file(clean_labels_ascii_2d.tesr) -domain square(4.967000,4.417000) -regularization 0 -rsel 0.3 -o grainmap Info : --------------------------------------------------------------- Info : Reading input data... Info : Creating domain... Info : Creating tessellation... Info : [i] Parsing file clean_labels_ascii_2d.tesr'...
Info : [i] Parsed file `clean_labels_ascii_2d.tesr'.
Info : . Number of cells: 194
Info : - Setting seeds... 100%
100%
Info : . Listing cell voxels... 100.0%
Info : . Sampling factor along x = 12.648637.
Info : . Sampling factor along y = 12.648637.
Info : . Number of voxels per cell: min = 5, avg = 29, max = 238.
Info : - Running tessellation...
Info : > Initial solution: f =0.219650338
Info : > Iteration 4112: fmin=0.199234745 f=0.210997472 ((7 min) 8 void cells)
Info : > Iteration 5114: fmin=0.199234745 f=0.213094391 (2 subplex) ((7 min) 8 void cells)
Info : > Iteration 6116: fmin=0.199234745 f=0.226239371 (3 praxis) ((7 min) 8 void cells)
Info : > Iteration 6117: fmin=0.199234745 f=0.226239371 (3 praxis) ((7 min) 8 void cells)
Info : > Final solution : f =0.199234745 (6117 iterations)
Warning: > Failed due to unknown error.
Info : Generating crystal orientations...

Info : - Merging cells with the same IDs...Aborted (core dumped)".

I have tried multiple times to figure out the problem but have been unable to solve it. It would be very kind to provide suggestions and help regarding this case of solving. I have also attached the .tesr file in text format so please see below the link of this file. My ultimate goal to make mesh in this image.

Tesr_file.txt