Hello,
Ever since I installed contenstats I get a lot of PHP Notice messages. The most common are the following

1. PHP Notice: Undefined index: cs_geolocation in xxx/plugins/system/contentstats/contentstats.php on line 426
2. Undefined index: value in xxx/plugins/system/contentstats/contentstats.php on line 251 referer: http://path_to_k2_article
3. PHP Notice: Undefined index: valuestring in xxx/plugins/system/contentstats/contentstats.php on line 251, http://path_to_JoomlaMenuItem
4. PHP Notice: Undefined variable: one_of_us in xxx/imarest/plugins/system/contentstats/contentstats.php on line 86, http://path_to_JoomlaMenuItem
5. Notice: Undefined variable: store in xxx/plugins/system/contentstats/contentstats.php on line 448
6. PHP Notice: Undefined index: HTTP_USER_AGENT in xxx/plugins/system/contentstats/contentstats.php on line 402

Note: xxx = the full site path (redacted for security)

There does not seem to be an obvious adverse effect to these notices (apart from log file sizes) and I don't want to turn error reporting off as we are constantly developing the site and we use the feature that all the time.

My questions are:
Can these be ignored? If not, how do I go about fixing the issues that cause this?

many thanks,