Bookroo Design Error: Unable to locate images/1-month.png

Triggered by: pricing.html (line 18)

  16.         <div class="col-md-10 col-md-offset-1">
  17.           <div class="col-md-3">
> 18.             <img src="{{ 'images/1-month.png' | asset_url }}">
  19.             <h3>1-Month</h3>
  20.             <h3 class="t-primary">17.99 / mo.</h3>

Stack Trace:

Traceback (most recent call last):
  File "/src/cratejoy/cratejoy/theme/render.py", line 401, in render_page
    output = tpl.render(**kwargs)
  File "/usr/local/lib/python2.7/site-packages/jinja2/environment.py", line 1008, in render
    return self.environment.handle_exception(exc_info, True)
  File "/usr/local/lib/python2.7/site-packages/jinja2/environment.py", line 780, in handle_exception
    reraise(exc_type, exc_value, tb)
  File "pricing.html", line 3, in top-level template code
  File "base.html", line 127, in top-level template code
  File "pricing.html", line 18, in block "page_content"
  File "/src/cratejoy/cratejoy/util/timer.py", line 70, in decorated
    res = f(*args, **kwargs)
MissingAssetException: Syntax error 'Unable to locate images/1-month.png' on line 18

PSST: If you are the owner of this store, fix this error from the code editor. See the developer documentation for more information.