get_timelines Error: API did not return json

[ManuelaGonzalez]

Problem

I have been using get_timelines function for one day without a problem but I now get get an error message, I restarted R but the problem continues , provided examples with my Twitter user but also happens with others I have tried.
Noticed the problem has been reported before here but did not find anything to suggest how I may fix it, apologies if I overlooked something

Expected behavior

to have timeline output for that user

Reproduce the problem

out = get_timelines(user = "MGS_tweets",
                    n = 3200,
                    parse = T)

Error: API did not return json
### rtweet version

 ‘0.7.0’

Session info

R version 3.6.1 (2019-07-05)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows >= 8 x64 (build 9200)

Matrix products: default

locale:
[1] LC_COLLATE=English_United Kingdom.1252  LC_CTYPE=English_United Kingdom.1252    LC_MONETARY=English_United Kingdom.1252
[4] LC_NUMERIC=C                            LC_TIME=English_United Kingdom.1252    

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
[1] rtweet_0.7.0

loaded via a namespace (and not attached):
 [1] Rcpp_1.0.4       fansi_0.4.0      crayon_1.3.4     assertthat_0.2.0 later_0.7.5      R6_2.3.0         lifecycle_0.2.0 
 [8] jsonlite_1.6.1   magrittr_1.5     pillar_1.4.3     httr_1.4.1       cli_2.0.2        rlang_0.4.6      curl_3.2        
[15] rstudioapi_0.11  promises_1.0.1   vctrs_0.3.1      ellipsis_0.3.0   tools_3.6.1      glue_1.3.0       httpuv_1.4.5.1  
[22] yaml_2.2.0       compiler_3.6.1   pkgconfig_2.0.2  openssl_1.1      tibble_3.0.0    ```

### Token
<Token>
<oauth_endpoint>
 request:   https://api.twitter.com/oauth/request_token
 authorize: https://api.twitter.com/oauth/authenticate
 access:    https://api.twitter.com/oauth/access_token
<oauth_app> rstat
  key:    6j7Ig4
  secret: <hidden>
<credentials> oauth_token, oauth_token_secret, user_id, screen_name

``` r
## copy/paste output
rtweet::get_token()

[Arf9999]

The solution to this seems to be to specify your token in the call :

out = get_timelines(user = "MGS_tweets",
                    n = 3200,
                    parse = T,
                    token = whatever_your_token_is_called_in_environment)