Unable to compile EasyTimeline input:

EasyTimeline 1.90


Timeline generation failed: 4 errors found
Line 42: Period = from:-4567.17 till:0

- Period definition invalid.

 Invalid year '-4567.%7b%%7b%user' specified for attribute 'from'.



Line 44: ScaleMajor = unit:year increment:500 start:-4500

- Scale attribute 'start' invalid.

 Date '-4500' not within range as specified by command Period.



Line 45: ScaleMinor = unit:year increment:100 start:-4500

- Scale attribute 'start' invalid.

 Date '-4500' not within range as specified by command Period.



Line 47: PlotData=

- PlotData invalid. No (valid) command 'Period' specified in previous lines.