grond report Error

[mohseniaref-InSAR]

Hi

I have such an error message like the following message, I really appreciate if you can guide me on how to solve it? the log file is attached.
grond report runs/salta_insar_workshop.grun

grond report  runs/salta_insar_workshop.grun
grond:grond.report         - INFO     - Creating report entry for run "salta_insar_workshop"...
grond:grond.dataset        - INFO     - Loading events from /home/pyrocko/grond_project/data/events/salta/event.txt: 1 events found.
grond:grond.dataset        - INFO     - Loading kite InSAR scenes...
grond:grond.plot.collection - INFO     - Figure saved: report/salta/salta_insar_workshop/plots/acceptance/default/acceptance.default.acceptance.d100.png
grond:grond.plot.collection - INFO     - Figure saved: report/salta/salta_insar_workshop/plots/acceptance/default/acceptance.default.acceptance_img.d100.png
grond:grond.plot.collection - INFO     - Figure saved: report/salta/salta_insar_workshop/plots/bootstrap/default/bootstrap.default.main.d100.png
grond:grond.targets.satellite.target - INFO     - Inverting scene covariance matrix (nthreads=1)...
grond:grond.targets.satellite.target - INFO     - Inverting scene covariance matrix done.
/usr/lib/python3/dist-packages/scipy/signal/_arraytools.py:45: FutureWarning: Using a non-tuple sequence for multidimensional indexing is deprecated; use `arr[tuple(seq)]` instead of `arr[seq]`. In the future this will be interpreted as an array index, `arr[np.array(seq)]`, which will result either in an error or a different result.
  b = a[a_slice]
/usr/lib/python3/dist-packages/scipy/signal/signaltools.py:1341: FutureWarning: Using a non-tuple sequence for multidimensional indexing is deprecated; use `arr[tuple(seq)]` instead of `arr[seq]`. In the future this will be interpreted as an array index, `arr[np.array(seq)]`, which will result either in an error or a different result.
  out_full[ind] += zi
/usr/lib/python3/dist-packages/scipy/signal/signaltools.py:1344: FutureWarning: Using a non-tuple sequence for multidimensional indexing is deprecated; use `arr[tuple(seq)]` instead of `arr[seq]`. In the future this will be interpreted as an array index, `arr[np.array(seq)]`, which will result either in an error or a different result.
  out = out_full[ind]
/usr/lib/python3/dist-packages/scipy/signal/signaltools.py:1350: FutureWarning: Using a non-tuple sequence for multidimensional indexing is deprecated; use `arr[tuple(seq)]` instead of `arr[seq]`. In the future this will be interpreted as an array index, `arr[np.array(seq)]`, which will result either in an error or a different result.
  zf = out_full[ind]
grond:grond.plot.collection - INFO     - Figure saved: report/salta/salta_insar_workshop/plots/contributions/default/contributions.default.main.d100.png
grond:grond.plot.collection - INFO     - Figure saved: report/salta/salta_insar_workshop/plots/histogram/default/histogram.default.east_shift.d100.png
grond:grond.plot.collection - INFO     - Figure saved: report/salta/salta_insar_workshop/plots/histogram/default/histogram.default.north_shift.d100.png
grond:grond.plot.collection - INFO     - Figure saved: report/salta/salta_insar_workshop/plots/histogram/default/histogram.default.depth.d100.png
grond:grond.plot.collection - INFO     - Figure saved: report/salta/salta_insar_workshop/plots/histogram/default/histogram.default.length.d100.png
grond:grond.plot.collection - INFO     - Figure saved: report/salta/salta_insar_workshop/plots/histogram/default/histogram.default.width.d100.png
grond:grond.plot.collection - INFO     - Figure saved: report/salta/salta_insar_workshop/plots/histogram/default/histogram.default.slip.d100.png
grond:grond.plot.collection - INFO     - Figure saved: report/salta/salta_insar_workshop/plots/histogram/default/histogram.default.dip.d100.png
grond:grond.plot.collection - INFO     - Figure saved: report/salta/salta_insar_workshop/plots/histogram/default/histogram.default.rake.d100.png
grond:grond.plot.collection - INFO     - Figure saved: report/salta/salta_insar_workshop/plots/histogram/default/histogram.default.insar.Salta_dsc.offset.d100.png
grond:grond.plot.collection - INFO     - Figure saved: report/salta/salta_insar_workshop/plots/histogram/default/histogram.default.insar.Salta_dsc.ramp_north.d100.png
grond:grond.plot.collection - INFO     - Figure saved: report/salta/salta_insar_workshop/plots/histogram/default/histogram.default.insar.Salta_dsc.ramp_east.d100.png
grond:grond.plot.collection - INFO     - Figure saved: report/salta/salta_insar_workshop/plots/jointpar/default/jointpar.default.fig_0_0.d100.png
grond:grond.plot.collection - INFO     - Figure saved: report/salta/salta_insar_workshop/plots/jointpar/default/jointpar.default.fig_1_0.d100.png
grond:grond.plot.collection - INFO     - Figure saved: report/salta/salta_insar_workshop/plots/jointpar/default/jointpar.default.fig_1_1.d100.png
/usr/lib/python3/dist-packages/matplotlib/colors.py:512: RuntimeWarning: invalid value encountered in less
  xa[xa < 0] = -1
Killed

[miili]

Hi there, which version of matplotlib is installed?