anova_test() error in repeated measures ANOVA

[Sapiens2025]

I have a dataframe named 'weeks'

head(weeks)
# A tibble: 6 × 4
  id    group bag_number   H50
  <fct> <fct> <chr>      <dbl>
1 1     week2 bag_5       4.57
2 2     week2 bag_6       4.62
3 3     week2 bag_7       4.56
4 4     week2 bag_8       4.65
5 5     week2 bag_9       4.47
6 6     week2 bag_10      4.66

When trying to conduct repeated ANOVA with rstatix::anova_test () in weeks with this
rstatix::anova_test(data = weeks, dv = H50, wid=id, within = group)

I get this error: Error in lm.fit(x, y, offset = offset, singular.ok = singular.ok, ...) : 0 (non-NA) cases

'Weeks' does not contain any missing values.
Any help would be appreciated
Thanks