Moveit Benchmarking cant plot PDF

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Hey guys,

i did benchmarking with moveit already some times and it always worked well. I get a perfect .log file which i converted sometimes into a pdf. After a few runs, i get the .log file but cant convert it into a pdf anymore. I used the same code all the time and only changed the planners to benchmark.

When i now run

rosrun moveit_ros_benchmarks moveit_benchmark_statistics.py -d benchmark.db catkin_ws/src/mrk_gazebo_hofmann/launch/result.log.1.log -p ur5_benchmarking.pdf

i get an error message:

Generating plot...
Traceback (most recent call last):
  File "/opt/ros/indigo/lib/moveit_ros_benchmarks/moveit_benchmark_statistics.py", line 432, in <module>
    plot_statistics(options.dbname, options.plot)
  File "/opt/ros/indigo/lib/moveit_ros_benchmarks/moveit_benchmark_statistics.py", line 236, in plot_statistics
    pp.savefig(plt.gcf())
  File "/usr/lib/pymodules/python2.7/matplotlib/backends/backend_pdf.py", line 2303, in savefig
    figure.savefig(self, format='pdf', **kwargs)
  File "/usr/lib/pymodules/python2.7/matplotlib/figure.py", line 1421, in savefig
    self.canvas.print_figure(*args, **kwargs)
  File "/usr/lib/pymodules/python2.7/matplotlib/backend_bases.py", line 2220, in print_figure
    **kwargs)
  File "/usr/lib/pymodules/python2.7/matplotlib/backends/backend_pdf.py", line 2352, in print_pdf
    self.figure.draw(renderer)
  File "/usr/lib/pymodules/python2.7/matplotlib/artist.py", line 55, in draw_wrapper
    draw(artist, renderer, *args, **kwargs)
  File "/usr/lib/pymodules/python2.7/matplotlib/figure.py", line 1034, in draw
    func(*args)
  File "/usr/lib/pymodules/python2.7/matplotlib/artist.py", line 55, in draw_wrapper
    draw(artist, renderer, *args, **kwargs)
  File "/usr/lib/pymodules/python2.7/matplotlib/axes.py", line 2086, in draw
    a.draw(renderer)
  File "/usr/lib/pymodules/python2.7/matplotlib/artist.py", line 55, in draw_wrapper
    draw(artist, renderer, *args, **kwargs)
  File "/usr/lib/pymodules/python2.7/matplotlib/text.py", line 598, in draw
    ismath=ismath, mtext=self)
  File "/usr/lib/pymodules/python2.7/matplotlib/backends/backend_pdf.py", line 1943, in draw_text
    return draw_text_simple()
  File "/usr/lib/pymodules/python2.7/matplotlib/backends/backend_pdf.py", line 1875, in draw_text_simple
    self._setup_textpos(x, y, angle)
  File "/usr/lib/pymodules/python2.7/matplotlib/backends/backend_pdf.py", line 1644, in _setup_textpos
    self.file.output(x - oldx, y - oldy, Op.textpos)
  File "/usr/lib/pymodules/python2.7/matplotlib/backends/backend_pdf.py", line 548, in output
    self.write(fill(map(pdfRepr, data)))
  File "/usr/lib/pymodules/python2.7/matplotlib/backends/backend_pdf.py", line 144, in pdfRepr
    raise ValueError("Can only output finite numbers in PDF")
ValueError: Can only output finite numbers in PDF

i cant find a solution for this problem, because it already worked before. Maybe someone of you can help. Im running ROS Indigo on Ubuntu 14.04.

Edit: When i run the same planners which worked before, i get the same error. This is the .log File:

Experiment UR5
Running on Donnas
Starting at 2017-03-28T11:29:29.263611
Goal name q_ur5
5 seconds per run
14.5057 seconds spent to collect the data
2 planners
OMPL_KPIECEkConfigDefault
0 common properties
18 properties for each run
path_interpolate_clearance REAL
path_interpolate_correct BOOLEAN
path_interpolate_length REAL
path_interpolate_smoothness REAL ...