cURL error 3: <url> malformed

I come to you gyus because i need your help for a problem that i didnt solved sometimes ago.
I don’t know where it was come from, but the problem appear suddenly.

I could create a odt file , but when i try to open it, i couldn’t.

I use the collaborate application.

Here is my last log saved :

{“reqId”:“q4g88iNR2x68sVvIX7cx”,
“level”:3,
“time”:“2017-08-13T11:19:50+00:00”,
“remoteAddr”:“197.158.78.19”,
“user”:“admin”,
“app”:“richdocuments”,
“method”:“GET”,
“url”:"/nextcloud/index.php/apps/richdocuments/index?fileId=289&requesttoken=
vMSg8iA4fPBJDL42xK%2BNgF10YibkzmASHPFeEsSoIdQ%3D%3A96HvolUJOsk9Od0Zhd7jsDJBLmeTgVN1ftoMKrHAR5I%3D",
“message”:“Exception: {“Exception”:“GuzzleHttpExceptionRequestException”,“Message”:“cURL error 3: malformed”,
“Code”:0,“Trace”:”#0 /var/www/html/nextcloud/3rdparty/guzzlehttp/guzzle/src/RequestFsm.php(104):
GuzzleHttpExceptionRequestException::wrapException(Object(GuzzleHttpMessageRequest), Object(GuzzleHttpRing
ExceptionRingException))n#1 /var/www/html/nextcloud/3rdparty/guzzlehttp/guzzle/src/RequestFsm.php(132):
GuzzleHttpRequestFsm->__invoke(Object(GuzzleHttpTransaction))n#2 /var/www/html/nextcloud/3rdparty/react/
promise/src/FulfilledPromise.php(25): GuzzleHttpRequestFsm->GuzzleHttp{closure}(Array)n#3 /var/www/html/
nextcloud/3rdparty/guzzlehttp/ringphp/src/Future/CompletedFutureValue.php(55): ReactPromise
FulfilledPromise->then(Object(Closure), NULL, NULL)n#4 /var/www/html/nextcloud/3rdparty/guzzlehttp/guzzle/src/Message/
FutureResponse.php(43): GuzzleHttpRingFutureCompletedFutureValue->then(Object(Closure), NULL, NULL)n#5 /
var/www/html/nextcloud/3rdparty/guzzlehttp/guzzle/src/RequestFsm.php(135): GuzzleHttpMessage
FutureResponse::proxy(Object(GuzzleHttpRingFutureCompletedFutureArray), Object(Closure))n#6 /var/www/html/
nextcloud/3rdparty/guzzlehttp/guzzle/src/Client.php(165): GuzzleHttpRequestFsm->__invoke(Object(GuzzleHttpTransaction))n#7

Thanks for your help gyus.